When the current in a certain inductor coil is 5.0 A and is increasing – McqOptions

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1.	When the current in a certain inductor coil is 5.0 A and is increasing at the rate of 10.0 A/s, the potential difference across the coil is 140V. When the current is 5.0 A and decreasing at the rate of 10.0 A/s, the potential difference is 60V. The self-inductance of the coil is -
A.	2H
B.	4H
C.	8H
D.	12H
Answer» C. 8H

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