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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 a distance L from the end A is:

A

`Q/(8pi in_(0)L)`

B

`(3Q)/(4pi in_(0) L)`

C

`(Q)/(4pi in_(0) L ln 2)`

D

`(Q ln 2)/(4pi in_(0) L)`

Text Solution

Verified by Experts

The correct Answer is:
D
Potential at `O=int_(L)^(2L)(K(Q/L dx))/(x)=0/(4pi in_(0)L) ln (2)`
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