Question

two circular coils A And B are placed closed to each other. if the current in the coil A is changed
will some current be induced in the coil B? give readon
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Answer 1

Answer:

This is because of electromagnetic induction.

please check the diagram

when one coil is connected to a battery other coil will experience magnetic field which helps the galvanometer to detect some current

what is meaning of electromagnetic induction?

the phenomena in which the current is induced into the coil due to change in magnetic field is known as electromagnetic induction.

Answer 2

Explanation:

Yes..if the current in the coil A is changed then some current will be induced in the coil B.

that's because changing of current even changes the magnitude of magnetic field around it..this induces current in the secondary coil ie in coil B.

here Coil A is called a primary coil and CoilB is called as secondary coil.