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A50 volt potential difference is suddenl...

A`50` volt potential difference is suddenly applied to a coil with `L=5xx10^(-3)` henry and `R=180 ohm`. The rate of increase of current after `0.001` second is

A

`27.3 amp//sec`

B

`27.8 amp//sec`

C

`2.73 amp//sec`

D

None of the above

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The correct Answer is:
D
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