The currrent in a coil changesfrom 1mA t...

The currrent in a coil changesfrom 1mA to 5 mA in 4 milliseconds. If the co-efficient of self-inductance of the coil is 10 mH the magnitude of the “self-induced” emf is

A

10 mV

B

5 mV

C

2.5 mV

D

1 mV.

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