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Magnetic Field Lines

What are magn...

Question

What are magnetic field lines?

A

They are real lines which depicts the strength and direction of magnetic force

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B

They are imaginary lines which depicts the strength and direction of magnetic force

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C

It is a type of force

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D

None of These

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Solution

The correct option is (A).

Magnetic field lines are imaginary lines, which depict the strength and direction of the magnetic field.

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Similar questions

Q. Which of the following statements is incorrect regarding magnetic field lines?

(a) The direction of magnetic field at a point is taken to be the direction in which the north pole 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 field is shown by the degree of closeness of the field lines.

Q. The ________ drawn at any point on the magnetic lines of force gives direction of magnetic field at that point.

Q. When a magnet is kept on a table and a compass is taken close to it, it points in a certain direction at every point near the magnet. When the points are joined, we obtain certain lines. Choose the correct statement(s):

Only 1
Both 1 and 2
Only 2
Neither 1 nor 2

Q. (a) Draw the magnetic lines of force due to a circular wire carrying current.
(b) What are the various ways in which the strength of magnetic field produced by a current-carrying circular coil can be increased?

Q. What should one do to maximize the magnitude of the magnetic force acting on a charged particle moving in a magnetic field?
I. Maximize the strength of the magnetic field
II. Minimize the particles velocity
III. Ensure that the particle is moving in the same direction as the magnetic field lines.

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