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When two co-axial coils having same curr...

When two co-axial coils having same current in same direction are bring to each other, then the value of current in both coils:

A

Pincreases while in Q decreases

B

Q increases while in P decreases

C

both P and Q increases

D

both P and Q decreases

Text Solution

Verified by Experts

The correct Answer is:
D
As coils P and Q approach each other, the flux linked with each of the coils increases. An induced current will be produced in each coil, which will try to decrease the flux in each coil. This implies that induced current in each coil will be opposite to the initial current. So, current in each coil P and Q decreases as the coils approach each other.
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