#### Question

The co-efficient of mutual induction between primary and secondary coil is 2H. Calculate induced e.m.f. if current of 4A is cut off in 2.5 x 10^{-4 }seconds

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#### Solution

Here, the co-efficient of mutual induction, M = 2H

4A is cut-off in 2.5 × 10^{-4} seconds.

Induced e.m.f., E = `M(di)/(dt)`

`therefore E = 2Hxx(4A)/(2.5xx10^-4)`

`therefore E = 3.2 xx 10^4V`

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Solution for question: The co-efficient of mutual induction between primary and secondary coil is 2H. Calculate induced e.m.f. concept: Inductance - Mutual Inductance. For the courses HSC Science (Computer Science), HSC Science (Electronics), HSC Science (General)