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In the question number 4, work done in b...

In the question number 4, work done in bringing a charge of `4xx10^(-9)` C form infinity to that point is

A

`2.4xx10^(-4)J`

B

`1.8xx10^(-4)J`

C

`3.2xx10^(-5)J`

D

`4.1xx10^(-5)J`

Text Solution

Verified by Experts

The correct Answer is:
B
Work done , `W=q(V_f-V_i)=4xx10^(-9)xx4.5xx10^4`
`=1.8xx10^(-4)` J
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