1.

Two circular coils A and B are place close to each other . If the current in the coil A is changed, is somecurrent inducedin the coil B ? Give reason.

Answer»

Solution :YES, if current is changed in coil A, current is induced in coil B. When the CURRENTIN coil A is changed, the MAGNETIC field around it also changes. As the coil B is PLACED very close to thecoil A, the magnetic field lines aroundcoil B also CHANGE and so, currentis induced in it.


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