Two electromagnets are made by wrapping a few turns of wire on similar nails and passing the same amount of electric current through them.The number of turn of the wire wrapped over the two iron nails are in the ratio 2:1.The strength of

The first electromagnet will be greater

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The second electromagnet will be greater

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Both the electromagnets will be equal

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Electromagnets has no relation with the number of turns

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Solution

The correct option is A The first electromagnet will be greater
More the number of coils, more will be the magnetic field produced in the electromagnets and hence made the electromagnet stronger. As number of turns wrapped on the first iron nail is more, thus the first electromagnet has more strength.

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