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Energy stored in a condenser of capacit...

Energy stored in a condenser of capacity `10 uF`, charged to 6kV is used to lift mass of 10 gm. The height to which the body can be raised is (Take `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
`C=10muF,V=6kV,m=10gm,h=?`
`E=1/2CV^(2)=mgh`
`therefore" "h=(CV^(2))/(2mg)=(10xx10^(-6)xx36xx10^(6))/(2xx10xx10xx10^(-3)xx9.8)=1800m`
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