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The sketch below shows cross-sections of...

The sketch below shows cross-sections of equipotential surface between two charged conductors that are shown in solid black. Some points one the euquipotential surface near the conductors are marked as A, B, C ………. The arrangement lies in air. `["Take " in_(0)=8.85xx10^(-12) C^(2)//N m^(2)]`

How much work is required to slowly move a `-1 mu C` charge from E to D?

A

`2xx10^(-5) J`

B

`-2xx10^(-5) J`

C

`4xx10^(-5) J`

D

`-4xx10^(-5) J`

Text Solution

Verified by Experts

The correct Answer is:
D
Here `V_(DE)=V_(D)-V_(E)=20-(-20)=40V`
Work done`=qV_(DE)`
`=-1xx10^(-6)xx40`
`=-4xx10^(-5) J`
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