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lavanyasharma
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Homework Statement
Consider a circular ring of radius r, uniformly hcarged with linear density lambda. Find the electric potential at a point on the axis at a distance x from the centre of the ring. Using this expression for the potential, find the electric field at this point.
Homework Equations
V = Kq/r
Electric field = spatial derivative of voltage
The Attempt at a Solution
I'm having trouble finding the potential! I do not understand how to calculate the potential due to a ring? I can't assume it to be a point hcarge!