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How is the mutual inductance of a pair of coils affected when:

(i) Separation between the coils is increased?

(ii) The number of turns of each coil is increased?

(iii) A thin iron sheet is placed between the two coils, other factors remaining the same?

Explain your answer in each case.

Asked by Topperlearning User 7th July 2015, 2:32 PM
Answered by Expert

(i) When the separation between the two coils is increased, the flux linked with the secondary due to the current in the primary, decreases. Hence the mutual inductance decreases.

(ii) Mutual inductance increases when the number of turns in each coil is increased, because

(iii) When an iron sheet is placed between the two coils the mutual inductance increases, because

Answered by Expert 7th July 2015, 4:32 PM
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