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The quarter disc of radius R (see figure...


The quarter disc of radius R (see figure) has a uniform surface charge density `sigma`.
(a) Find electric potential at a point (O,O,Z)
(b). Find the Z component of electrif field at (O,O,Z)

A

`(sigma)/(8epsilon_(0))[1-(Z)/(sqrt(R^(2)+Z^(2)))]`

B

`(sigma)/(4epsilon_(0))[(sqrt(R^(2)+Z^(2)))+Z]`

C

`(sigma)/(8epsilon_(0))[sqrt(R^(2)+Z^(2))-Z]`

D

`(sigma)/(8epsilon_(0))[(Z)/(sqrt(R^(2)+Z^(2)))]`

Text Solution

Verified by Experts

The correct Answer is:
C
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