Two circular coils, P and Q, are kept close to each other, of which coil P carries a current. Is it true that current will be induced in coil Q if coil P is brought close to coil Q?

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True

False

answer is A.

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Detailed Solution

The above statement is True.
An emf is induced in coil Q when coil P is brought close. Lenz's Law gives the direction of induced emf. It states that the direction of the current induced in a conductor by a changing magnetic field is such that the magnetic field created by the induced current opposes the initial changing magnetic field.
According to Lenz's law, an induced electric current flows in a direction such that the current opposes the change that induced it and therefore when coil Q is brought near coil P, then current is induced in coil P.

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