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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)

Text Solution

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The correct Answer is:
(a). `V=(sigma)/(8 in_(0))[sqrt(R^(2)+Z^(2))-Z]`
(b). `E_(Z)=(sigma)/(8 in_(0))[1-(Z)/(sqrt(R^(2)+Z^(2)))]`
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