Question

A condenses having a capacity 2.0 µF is charged to 200 V and the plates of the capacitor are connected to a resistance wire. The heat produce in it will be:-

Options

• `2 xx 10^-2` J

• `4 xx 10^-2` J

• `4 xx 10^4` J

• `4 xx 10^10` J

Answer 1

`4 xx 10^-2` J

Explanation:

Heat causes = `1/2  Cr^2`

= `1/2 xx 2 xx 10^-6 xx (100)^2`

= `4 xx 10^-2` J