Answer :
At a point p on the ring's axis, the electric potential due to the ring is
V = [tex]\frac{kQ}{\sqrt{z^{2} +}R^{2} }[/tex]
What is Electric potential?
The amount of work required to move a unit of electric charge from a reference point to a specific place in an electric field is known as the electric potential.
Calculation of the Electric potential at point P is :
dV =kdq/r
From the figure given below:
r = [tex]\sqrt{z^{2}+R^{2} }[/tex]
By integrating the equation we got,
V = kQ/r
As E = -dV/dz,
Therefore, At a point p on the ring's axis, the electric potential due to the ring is:
V = [tex]\frac{kQ}{\sqrt{z^{2} +}R^{2} }[/tex]
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