Question
Question: Two circular coils can be arranged in any of the three situations shown in figure. their mutual indu...
Two circular coils can be arranged in any of the three situations shown in figure. their mutual inductance will be
A
Maximum in situation (i)
B
Maximum in situation (ii)
C
Maximum in situation (iii)
D
The same in all situations
Answer
Maximum in situation (i)
Explanation
Solution
As the mutual inductance of two coils will be maximum when there is minimum leakage of magnetic flux. In situation (1) we find that, magnetic flux linked with one coil threads fully through the other coil.
\Mutual inductance is maximum in situation (1)
Therefore the answer is (1).