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A charge Q is uniformly distributed over...

A charge Q is uniformly distributed over a long rod AB of length L as shown in the figure. The electric potential at the point O lying at distance L from the end A is

A

(a) `(Q)/(8piepsilon_0L)`

B

(b) `(3Q)/(4piepsilon_0L)`

C

(c) `(Q)/(4piepsilon_0L1n2)`

D

(d) `(Q1n2)/(4piepsilon_0L)s`

Text Solution

Verified by Experts

The correct Answer is:
D

Electric potential is given by,
`V=int_L^(2L)(kdq)/(x)=int_L^(2L)(1)/(4piepsilon_0)((q/L)dx)/(x)=(q)/(4piepsilon_0L)1n(2)`
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