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A half ring of radius r has a linear cha...

A half ring of radius `r` has a linear charge density `lambda`.The potential at the centre of the half ring is

A

`K(lambda)/(R)`

B

`k (lambda)/(piR)`

C

`k(pi lambda)/(R)`

D

`k pi lambda`

Text Solution

Verified by Experts

The correct Answer is:
D
Total charge =R , `V_0=k, (pi R lamda)/R= k pi lamda`, (Charges are equidistant force O)
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