When the north pole of a bar magnet picks up an iron nail which of the following are induced in the nail ?

North poles

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South poles

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A north pole and south pole

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None of these

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Solution

The correct option is C A north pole and south pole
If an iron nail is attracted towards a north pole of the magnet and sticks to it then the magnetic field lines start flowing through the iron nail. As the attraction occurs only in between two unlike poles, thus the side which gets stuck to the north pole acts as the south pole and the opposite side acts as the north pole. Therefore, Option C is correct.

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Similar questions

If the north pole of a bar magnet is brought closer to a spherical iron ball then where will its induced north pole be?

Question 4

North pole of a magnet can be identified by

(a) Another magnet having its poles marked as North pole and South pole.

(b) Another magnet no matter whether the poles are marked or not.

(d) Using iron filings.

Ganeshan set up an experiment using two bar magnets one of which is marked N (North pole) and S (South pole) as shown in the figure. He noticed that the upper magnet is suspended in air.

Identify X and Y poles of the upper magnet.

Question 5

A bar magnet is immersed in a heap of iron filings and pulled out. The amount of iron filling clinging to the

(a) North pole is almost equal to the south pole.

(b) North pole is much more than the south pole.

(d) Magnet will be same all along its length.

Q. Consider an iron nail with ends

A

and

B

. A bar magnet is brought near end

A

of the iron nail with its North Pole facing the end

A

. Choose the correct statement.

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