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The energy stored in a condenser of capa...

The energy stored in a condenser of capacity 10 `muF`, charged to 6 kV is used to lift a body of mass of 10 gm. What is the height to 2hich the body can be raised? `(g=10m//s^(2))`

A

180 m

B

18 m

C

1.8 m

D

1800 m

Text Solution

Verified by Experts

The correct Answer is:
D
Energy of the capacitor`=(1)/(2)CV^(2)`
`=(1)/(2)xx10xx10^(-6)xx36xx10^(6)`
this is used to lift the body and W=mgh
`therefore 180J=mgh=10xx10^(-3)xx10xxh" "h=1800m`
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