A bar magnet is brought near an iron nail. Which of the following correctly depicts the polarisation of the nail?

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None of the above

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Solution

The correct option is A

The phenomenon of a magnetic substance acquiring magnetism due to the presence of a magnetic material around it is known as magnetism. When a bar magnet is brought near an iron nail, the iron nail gets magnetised. When a bar magnet is brought near an iron nail the polarity developed at the farthest end of the nail is the same as the polarity of the tip magnet with which it is in contact.

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Explain the mechanism of attraction of iron nails by a magnet when brought near them.

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