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Q.

Is it true that current is induced in coil if the current is changed in coil A and if both the coils are placed near to each other?


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a

True

b

False 

answer is A.

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Detailed Solution

The given statement is True.
When two circular coils A and B are placed close to each other and the current in coil A is changed, some current is induced in the coil B and the magnetic field associated with it changes as well. As a result, the magnetic field around the coil B changes. The change in the magnetic field lines around coil B causes an electric current to flow through it. This is referred to as electromagnetic induction.
 
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