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An inductance of 2H carries a current of...

An inductance of `2H` carries a current of `2A`. To prevent sparking when the circuit is broken a capacitor of `4muF` is connected across the inductance. The voltage rating of the capacitor is of the order of

A

`10^3V`

B

`10V`

C

`10^5V`

D

`10^6V`

Text Solution

Verified by Experts

The correct Answer is:
A
`1/2Li^2=1/2CV^2`
`:. V=sqrt(L/C)=i=sqrt(2/(4xx10^-6))(2)`
`=sqrt2xx10^3V`
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