Engineering
Physics
Electric Potential Energy and Electric Potential
Question
A ring of radius R, centered at the origin and lying in the x-y plane is having linear charge density λ = λ0 sin 2θ where θ is angle from the positive x-axis. Find the electric POTENTIAL due to this ring at (0, 0, R).
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Solution
Think about positive or negative value of charge with respect to the angel.
V = ( k. total charge on ring )/r = 0