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Which of the following is true about magnetic field lines at the north pole and south pole of a bar magnet?

A. Field lines begin near the center of the magnet and extend toward the north and south poles.
B. Field lines begin near both the magnet’s north and south poles and meet in the middle.
C. Field lines begin near the magnet’s north pole and extend toward its south pole.
D. Field lines begin near the magnet’s south pole and extend toward its north pole.

Answer :

C. Field lines begin near the magnet’s north pole and extend toward its south pole. 

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Answer:

Option (c) is correct.

Explanation:

There are some properties of magnetic field lines which are given below:

(i) The field lines begin near the magnetic north pole and extend towards the south pole of the magnet outside the magnet.

(ii) Inside the magnet, the magnetic filed lines moves from south pole to north pole.

(iii) The tangent at any point on the field line gives the direction of magnetic field at that point.

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