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Two identicaly induction coils each of i...

Two identicaly induction coils each of inductance `L` joined in series are placed very close to each other such that the winding direction of one is exactly opposite to that of the other, what is the net inductance?

A

`L^(2)`

B

2L

C

L/2

D

Zero

Text Solution

Verified by Experts

The correct Answer is:
D
As winding direction is opposite.
`L_(eq)=L_(1)+L_(2)=(-varphi)/i+varphi/i=0`.
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