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# Are the magnetic field lines closed

### Are the magnetic field lines closed? Explain

1. The field lines are closed curves as they start from north pole to south pole outside and south pole to north pole inside. Answer verified by Toppr 324 Views Upvote (8
2. This might be an indication, that indeed the field line in the knotted configuration does not close, but is still far from a proof, which may not be provided numerically. How to generate a closed knotted magnetic field line
3. 1. Are the magnetic field lines closed? Explain. A. The magnetic lines of forces distributed from north pole to south pole in the magnetic field. And the magnetic lines of forces distributed from south pole to north pole inside the magnet. No two magnetic lines of forces intersect each other. Hence, they are closed lines. 2. Observe the figure given
4. g closed loops without beginning or end. They go from the north pole to the south pole. The last property is related to the fact that the north and south poles cannot be separated

### Are magnetic field lines closed - TA

InTrO:-Magnetic field lines are a visual tool used to represent magnetic fields. AnsWeR:-The electric field lines can never form closed loops, as line can never start and end on the same charge In the limit, the magnetic field line loop radius goes to infinity so they don't close (or they 'loop around at infinity'). Thus, you won't find the magnetic field line loops you're looking for in plane waves 1. Are the magnetic field lines closed? Explain. Get the answers you need, now They always come in N-S pairs. So there is no source or a sink for magnetic field lines. The net flux of the magnetic field through any closed surface is zero. All the field lines that enter through the surface into a volume enclosed by the surface also exit through the surface.Hence Magnetic field lines always are closed loops

If magnetic lines are close, then the magnetic field has a lot of magnetic lines of force packed together. This translates into a large number of flux lines per unit of area through which they're.. So there is no source or a sink for magnetic field lines.The net flux of the magnetic field through any closed surface is zero. All the field lines that enter through the surface into a volume enclosed by the surface also exit through the surface.Hence Magnetic field lines always are closed loops Answer. Field lines are used to represent a magnetic field a field line is the path along which a hypothetical free north pole would tend to move. The direction of the magnetic field at a point is given by the direction that a north pole placed at that point would take. Field lines are shown closer together where the magnetic field is greater

From the properties of bar magnets, we know that the magnetic field lines responsible for the field originate at the north and terminate at the south pole, and are thus closed loops. Although Earth is sometimes viewed as having an enormous magnet in its core, that is not at all true, but provides a good picture to the case study Inside the magnet they travel from the south pole to the north pole. As isolated magnetic poles or monoploes do not exist; the smallest source of magnetic field is a magnetic dipole or a current loop. North and south (N-S) always come togheter. Therefore, the magnetic field lines are continuous and form closed loops One important property of the B-field produced this way is that magnetic B-field lines neither start nor end (mathematically, B is a solenoidal vector field); a field line may only extend to infinity, or wrap around to form a closed curve, or follow a never-ending (possibly chaotic) path

The magnetic fields line are closer to each other at poles, but are widely apart at other places. Hence, magnetic field is strongest at the poles. Magnetic Field has Direction The Magnetic Field lines are like closed curve Magnetic field lines form a closed-loop. Field lines have both direction and magnitude at any point on the field. Therefore, magnetic field lines are represented by a vector. They denote the direction of the magnetic field

### Magnetic Fields and Magnetic Field Lines Physic

Magnetic field lines are closed curves because there is no such thing as a magnetic monopole. Unlike positive and negative charges, which can be.. To plot the Magnetic Field Pattern due to a bar magnet by using a Compass, the magnetic field lines leave the north pole of a magnet and enter its south pole. The strength of magnetic field is indicated by the degree of closeness of the field lines. So, magnetic field is the strongest, where the field lines are closest together Magnetic field lines have various properties: 1. The magnetic field lines never intersect each other 2. It takes the least resistant path between the opposite magnetic poles. Path of magnetic lines of force of a bar magnet is closed loops from one pole to the other. 3. The length of magnetic field lines will be the same. 4

### Are the magnetic field lines closed ? explain - Brainly

1. Solution for All field lines are either closed loops or lines that continue towards infinity. Field lines can cross each other. The direction of the magnetic
2. Magnetic Field Lines. Watch later. Share. Copy link. Info. Shopping. Tap to unmute. If playback doesn't begin shortly, try restarting your device. Up Next
3. Magnetic field lines represent continuous curves that originate at the north pole of the magnet and end at the south pole.While we can find electric monopoles in the form of charged particles, we have never observed magnetic monopole. Instead, magnets exist only in the form of dipoles with north and south en
4. Field lines that go into the sink of a vector field, where divergence is negative, will there have their end. Field lines can also form closed loops, or extend to or from infinity, or continue forever without closing in on themselves. An individual field line shows the direction of the vector field but not the magnitude
5. Electromagnetsm (part7
6. Assertion: Magnetic field lines are continuous and closed. Reason: Magnetic monopole does not exist. If both assertion and reason are true and reason is the correct explanation of assertion. If both assertion and reason are true but reason is not the correct explanation of assertion. If assertion is true but reason is false

### electromagnetism - Magnetic field closed loop lines in an

• Magnetic field lines tend to follow closed loops, though. Ordinary permanent magnets have North and South poles, and the magnetic field lines go out of the magnetic North pole and head towards the South pole, usually curving in the process
• Because the magnetic field lines must form closed loops, the field lines close the loop outside the solenoid. The magnetic field lines are much denser inside the solenoid than outside the solenoid. The resulting magnetic field looks very much like that of a bar magnet, as shown in Figure 20.15
• This discussion on Why are magnetic field lines closed continuous curves is done on EduRev Study Group by Class 10 Students. The Questions and Answers of Why are magnetic field lines closed continuous curves are solved by group of students and teacher of Class 10, which is also the largest student community of Class 10
• Assertion: Magnetic field lines are continuous and closed
• Magnetic field lines always form closed loops or curves because of the presence of magnetic dipoles and absence of magnetic mono poles in nature. We will always find the a magnetic poles (north and south) as couples so the field lines beginning from one end (pole) have to end at the other. This is why magnetic field lines are always closed curves

Evidence for newly closed magnetosheath field lines at the dayside magnetopause under northward IMF B. Lavraud,1 M. F. Thomsen,1 B. Lefebvre,2 S. J. Schwartz,2 K. All magnetic fields are created by moving charges, whether they are moving in straight lines or orbits within an atom, as in your bar magnet. Secondly, a moving charge within a magnetic field experiences a magnetic force, such that moving charges will tend to attract one another if they are moving in the same direction; like currents attract, unlike repel The magnetic field is strongest at the poles, where the field lines are most concentrated. Field lines also show what happens to the magnetic fields of two magnets during attraction or repulsion See the answer. Magnetic field lines form closed loops. Around and through bar magnets. Through current-carrying loops. Around current-carrying straight wires. All of the above There are still magnetic field lines outside the solenoid as the magnetic field lines form closed loops. What has been found from the careful investigations is that the half of these lines leak out through the windings and half appear through the ends

The closer together magnetic field lines are, the _____ the magnetic force. closer farther stronger weaker Magnetic poles always exist in north-south poles. true*** false A(n) _____ is an electric circuit that produces a magnetic field. magnetic battery electromagnet coil magnet coil circuit A car's horn sounds different as the car approaches. The change in pitch is due to ________. (1 point. It's not correct that magnetic field lines are always closed loops. They can, for instance, extend to infinity in both directions. Or they can loop endlessly around some small volume without touching themselves- after all they are just mathematical objects with zero thickness But as far as I know there never been any observations of magnetic fields that don't form closed loops which means the theory still holds after over a 100 years. I suspect a lot of our daily technology (transformer for example) use the fact that magnetic field lines close and physicists probably use it in experiments daily

Magnetic field lines are closed continuos curves. No 2 magnetic lines intersect each other. Magnetic field is uniform if its magnitude is equal and direction is same at every point in space. Magnetic fields is non-uniform if its magnitude is not equal and direction is not same every point in space the magnetic field lines, because of their motion on the source surface, are not identical with streamlines of the solar wind. In fact, the magnetic lines of force connect high and low latitudes, and they appear to be over- wound and underwound compared to the Archimedian spiral pattern of Parker field lines for a given solar win Through the well‐conducting ionosphere, footprints of the open field lines are connected to footprints of closed magnetic field lines, so that an electric connection occurs between the open field lines over the southern polar cap and the open field lines over the northern polar cap (i) Magnetic lines of force form continuous closed loops because a magnet is always a dipole and as a result, the net magnetic flux of a magnet is always zero. (ii) When a diamagnetic substance is placed in an external magnetic field, a feeble magnetism is induced in opposite direction. So, magnetic lines of force are repelled These open field lines have been observed by spacecraft and predicted by models. The amount and variability of both open and closed field lines has implications for atmospheric escape to space and upper atmospheric energetics. As MGS orbits the planet at 400 km altitudes it samples both open and closed magnetic field lines

### 1. Are the magnetic field lines closed? Explain. - Brainly.i

• Properties of Magnetic Field Lines o A magnetic field line is directed from the North Pole to the South Pole outside the magnet. o A magnetic field line is a closed and continuous curve. o The magnetic field lines are closer where the magnetic field is strong and farther apart where the magnetic field is weak
• 1. Choose the incorrect statement from the following regarding magnetic lines of field (a) The direction of magnetic field at a point is taken to be the direction in which the north pole of a magnetic compass needle points (b) Magnetic field lines are closed curves (c) If magnetic field lines are parallel and equidistant, they represent zero field strength (d) Relative strength of magnetic.
• is if magnetic field lines always form closed loops. This is in fact what we find in practice, as shown in Figure 7.2.1. Figure 7.2.1: Gauss' Law for Magnetostatics applied to a two-dimensional bar magnet. For the surface , every field line entering . also leaves S, so the flux through . is zero
• (b) Magnetic field lines are closed continuous curves. They diverge from the north pole of a bar magnet and converge its south pole. Inside the magnet they move from south pole to north pole. Long Answer Type Question [5 Marks] - Year 201
• Power lines produce magnetic fields continuously because current is always flowing through them. Electric fields are easily shielded or weakened by walls and other objects, whereas magnetic fields can pass through buildings, living things, and most other materials

A field line is a locus that is defined by a vector field and a starting location within the field. Field lines are useful for visualizing vector fields, which are otherwise hard to depict. Note that, like longitude and latitude lines on a globe, or topographic lines on a topographic map, these lines are not physical lines that are actually present at certain locations; they are merely. Answer to Magnetic field lines (a) are closed loops. (b) start on the north pole of a magnet and end on the south pole. (c)...

### Why do magnetic lines form continuous closed loops? - Quor

1. It is based upon drop of magnetic field values, as we move away from the high tension power lines. We suggest that a safe zone is where magnetic fields are less than 1 milliGauss (.1 microTesla). This is as suggested by building biology compliance norms
2. The magnetic field lines are circles directed counterclockwise and centered on the wire. To begin, let's consider $$\oint \vec{B} \cdot d\vec{l}$$ over the closed paths M and N. Notice that one path (M) encloses the wire, whereas the other (N) does not
3. (b) Magnetic field lines are closed curves. (c) If magnetic field lines are parallel and equidistant, they rep-resent zero field strength. (d) Relative strength of magnetic field is shown by the degree of closeness of the field lines
4. Magnetic Field Lines. The use of field lines is an alternative way to represent the information contained within a magnetic vector field. Magnetic field lines are imaginary lines. Magnetic field lines are a visual tool used to represent magnetic fields. They describe the direction of the magnetic force on a north monopole at any given positio
5. Closed field lines • Flux surfaces, ψ = constant, are surfaces of rotation about the symmetry axis, Z • Equatorial plane symmetry ⇒ symmetric (even) and antisymmetric (odd) modes • Toroidal equilibrium currents • Poloidal equilibrium magnetic field ⇒ J || = 0 ⇒ no kinks • Unfavorable curvature ⇒ ballooning modes ζ r R Z θ ψ = constan
6. Let's explore what magnetic field lines are, why we draw them, and what their properties are. points this way this field line tells us the North Pole of a tiny magnet point will point this way and so on and these field lines always form closed loops wherever the field lines are closer the field is stronger and they will never ever.

### What does it mean when the magnets field lines are close

The magnetic field lines are circles directed counterclockwise and centered on the wire. To begin, let's consider over the closed paths M and N. Notice that one path (M) encloses the wire, whereas the other (N) does not The magnetic flux is the amount of magnetic field lines cutting through a surface area A defined by the unit area vector If the angle between the unit area and magnetic field vector are parallel or antiparallel, as shown in the diagram, the magnetic flux is the highest possible value given the values of area and magnetic field

### Why magnetic field lines are closed curve????? EduRev

• Meena draws magnetic field lines of field close to the axis of a current carrying circular loop. As she moves away from the centre of the circular loop she observes that the lines keep on diverging. How will you explain her observation. Soln: NCERT Exemplar for Class 10 Science Chapter 13 Magnetic
• Four closed surfaces are shown. The areas A top and A bot of the top and bottom faces and the magnitudes B top and B bot of the uniform magnetic fields through the top and bottom faces are given. The fields are perpendicular to the faces and are either inward or outward. Rank the surfaces according to the magnitude of the magnetic flux through the curved sides, least to greatest
• Continuities and discontinuities in fields can be described mathematically by boundary conditions and used to constrain solutions for fields away from these boundaries. In this section, we derive boundary conditions on the magnetic field intensity $${\bf H}$$
• The accelerated electrons, whose typical Lorentz factor is ∼50-100, from the companion star move along the magnetic field lines toward the WD surface. The electrons injected with the pitch angle of \sin {θ } p,0 > 0.05 are subject to the magnetic mirror effect and are trapped in the closed magnetic field line region
• by convention that the field lines emerge from north pole and merge at the south pole (note the arrows marked on the field lines in Fig. 13.4). Inside the magnet, the direction of field lines is from its south pole to its north pole. Thus the magnetic field lines are closed curves. The relative strength of the magnetic field is shown by the.

Magnetic field lines always form closed loops. They never cross. Spacing. The gap between field lines represents the strength of the magnetic field. Dot. Represents a vector coming towards you/out of the page. Cross. Represents a vector going away from you/into the page. Movement of charge The stability of axisymmetric plasmas confined by closed poloidal magnetic field lines is considered. The results are relevant to plasmas in the dipolar fields of stars and planets, as well as the.

### Field lines are shown close together where th

The magnetic field 'be visualized in terms of flux lines which form closed loops interlinked with the '•ding. •. 'As applied to the magnetic circuit of Fig. 1.1, the source of the magnetic field .:tJi,e core is the ampere-turn product Ni. In magnetic circuit terniinology Ni is the G,gnetomotive force (mmf) :F acting on the magnetic circuit Magnetic Field Lines. Magnets are surrounded by magnetic fields. A magnetic field can be thought of as consisting of lines of force. The forces of magnetic attraction and repulsion move along the lines of force. The magnet below is being placed on a surface containing iron filings You can refer to NCERT Solutions for Class 10 Science Chapter 13 Magnetic Effects of Electric Current to revise the concepts in the syllabus effectively and improve your chances of securing high marks in your board exams. Magnetic Effects of Electric Current Class 10 MCQs Questions with Answers. Question 1. Choose the incorrect statements from the following regarding magnetic lines of field

### Magnetic Field Lines Brilliant Math & Science Wik

1. A) Magnetic field lines are close together in regions of space where the magnitude of the magnetic field is weak, and they are farther apart in regions where it is strong. B) Magnetic field lines point in the direction of the magnetic force acting on a charge. C) Magnetic field lines can never intersect. D) Magnetic field lines form closed loops
2. 13. Which of the following statements is true about magnetic lines of force? (a) Magnetic lines of force are always closed. (b) Magnetic lines of force always intersect each other. (c) Magnetic lines of force tend to crowd far away from the poles of the magnet (d) Magnetic lines of force do not pass through the vacuum. Answer. Answer: (a.
3. To gain a feeling how strong the electromagnetic fields of a high voltage line close to the ground are, a high voltage line with the dimensions given in Figure 1 is considered in this article. Since we consider a symmetric three-phase system, the voltage in the single conductors are in each case phase-shifted by 120°, and the voltages and currents in the conductors vary with the power.

When tracing the magnetic field lines, did you notice that no matter where you place the compass, you can always find a line? That's because the magnetic field isn't consisted of lines, but is continuous all around the magnets. The lines are just there to help us see what the magnetic field is like at different locations around the. Abstract Verkasalo PK. Magnetic fields and leukemia - risk for adults living close to power lines.Scand J Work Environ Health 1996;22 suppl 2:56 p. The objective of this study was to investigate the risk of leukemia from magnetic field exposure amon Magnetic field lines always form closed loops. These field lines originate from the north pole and end at the south pole by convention. The direction inside the magnet inversely appears to move from south pole to north of a bar magnet Magnetic field lines exist as closed loops. In bar magnets, the loops leave a magnet from the north pole and enter the magnet in the south pole, then travel within the magnet from south to north

### Why do magnetic lines of force form continuous closed

Introduction to Magnetic Fields Magnetic fields are strongest at the poles. The magnetic field lines leave from the north pole and enter the south pole. When holding two bar magnets close This is consistent from our previous claim that the net magnetic force acting on a closed current-carrying loop must be zero. 8-7 The magnetic lines of force are the lines drawn in a magnetic field along which a hydrothetical north magnetic pole would move if it is free to do so. The direction of a magnetic field at a point is the direction of the resultant force acting on a hypothetical north pole placed at that point

### Magnetic field - Wikipedi

Electric field lines form closed loops aroud a time-varying magnetic field. Can you explain why the magnetic field has an effect on charged particles. your stumbling onto something big try the electrostatics applets then do the magnetic applets then do electromagnet applets. and see all that u can see b) Parallel to magnetic field lines, with the north pole pointing in the direction of the field. Magnetic field lines form closed loops a) Around and through bar magnets However, it was later found that Earth's north pole is close to its magnetic south pole (and that is why magnet's north pole is attracted to it). Thus, it is purely a matter of convention which.. The most recent version of the model came out in 2015 and was supposed to last until 2020 — but the magnetic field is changing so rapidly that researchers have to fix the model now The magnetic fields due to solenoid and toroid is given in figures below Magnetic field inside the solenoid is a uniform, strong and along its axis also field lines are all most parallel while inside the toroid field line makes closed path. (iii) The magnetic field in the solenoid can be increased by inserting a soft iron core inside it. 28

### Magnetic Field Lines - Definition, Properties, How to Draw

Magnetic strains of tension sort closed loops so the strains getting in and the strains going out of a area could be the comparable. in the classical experience, a bar magnet should not be seen a.. Recall that when the field lines are close together the magnetic field B is strong and when they are far apart, then the magnetic field B is weak. We can measure this by counting how many field lines cross the area of a sphere as it grows and shrinks

### Properties of Magnetic Field Lines (Definition

The total magnetic flux through any closed surface is always zero, Electric field lines are discontinuous as they have a starting point (+ charge) and an ending point (- charge); But magnetic field lines are continuous, they always form closed loops . Share the knowledge A magnetic field line can be thought of as consisting of lines of force. The forces of magnetic attraction and repulsion move along the lines of force.These can be illustrated to form closed loops. Shielding won't help you wiht magnetic fields. You could get a consultant to check if internal wiring may be adding to the exposure, but if the power lines are close and the field strength increase and reduces in a logical pattern in relation to the distance from the lines then you're pretty safe to say they are your problem. Good luck. Patric

### Why are magnetic field lines closed curves? Study

to closed or from closed to open, an emf is induced in the secondary circuit. Change in the number of field lines through a coil gives a current. At point 2 the induced magnetic field will point into the page, in the same direction as th This strange arrangement causes Uranus's magnetic field, also known as its magnetosphere, to flip open and closed on a daily basis, new research suggests

### Magnetic field and field lines - Tutormat

1. AURORAE AND CLOSED MAGNETIC FIELD LINES D.D. Duthie and M.W.J. Scourfield Department of Physics, University of Natal, Durban, South Africa (Received 25 April 1977; and in revised form 9 August 1977) ABSTRACT The positions of auroral forms imaged by a TV system are compared with the positions of field lines along which whistlers propagate
2. When two magnets are brought close together, the magnetic field lines are perturbed, just as happens for electric field lines when two electric charges are brought together. Bringing two north poles together—or two south poles—will cause a repulsion, and the magnetic field lines will bend away from each other
3. If a number of magnetic field lines are leaving a closed surface, an equal number of field lines must also be entering the surface. MAGNETIC FLUX. The magnetic flux through a given area may be defined as the total number of magnetic lines of force passing through this area
4. Each time the Sun resets with a new, smooth magnetic field, that field is reversed from the way it had just been. The Sun's North and South Magnetic Poles trade places. So it really takes about 22 years (two 11-year cycles) for the Sun's magnetic field to go through a complete cycle and end up back where it started
5. g closed loops
6. Which of the following statements is not characteristic of a static magnetic field? (A) It is solenoidal. (B) It is conservative. (C) It has no sinks or sources. (D) Flux lines are always closed

Magnetic fields are electrical in nature, and the magnetic field caused by a long straight line of current is simulated in Figure 1. The flux lines are continuous and exist in closed loops. A unit of magnetic flux is called a Maxwell (a line) The lines of magnetic field from a bar magnet form closed lines. By convention, the field direction is taken to be outward from the North pole and in to the South pole of the magnet. Permanent magnets can be made from ferromagnetic materials ..27 Magnetic Field and Magnetic Forces J. Manuel Physics 72 1st Sem AY13-14 1 27 Fundamental nature of Magnetism Magnetism Magnetic Field Magnetic Field Lines and Magnetic Flux Motion of Charged Particles in Magnetic Field Magnetic Force on a Current-Carrying Conductor Force and Torque on a Current Loop Interaction of moving electric charges Magnetic forces arise in two stages: 1 Magnetic field lines These lines are a way to show the structure of a magnetic field. A compass needle will always point along a field line. The lines are close together where the magnetic force is strong, and spread out where it is weak. Magnetic storm A disturbance in the magnetosphere due to solar activity. ~ Magnetic fields and lines of force. A bar magnet attracts iron objects to its ends, called poles.One end is the north pole, and the other is the south pole.If the bar is suspended so that it is free to move, the magnet will align itself so that its north pole points to the geographic north of the earth

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