The mutual inductance between a primary and secondary circuits is 0.5 – McqOptions

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1.	The mutual inductance between a primary and secondary circuits is 0.5 H. The resistances of the primary and the secondary circuits are 20 ohms and 5 ohms respectively. To generate a current of 0.4 A in the secondary, current in the primary must be changed at the rate of [MP PMT 1997]
A.	4.0 A/s
B.	16.0 A/s
C.	1.6 A/s
D.	8.0 A/s
Answer» B. 16.0 A/s

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