r = R = sqrt(R2 + z2)
A ring with radius R and a uniformly distributed total charge Q lies in the xy plane, centered at the origin.
Part A. What is the potential V(z) due to the ring on the z axis as a function of z? Express your answer in terms of Q, z, R, and ε0 or k = 1/(4πε0)
Part B. What is the magnitude of the electric field E on the z axis as a function of z, for z > 0? Express your answer in terms of some or all of the quantities Q, z, R, and ε0 or k = 1/(4πε0)
Frequently Asked Questions
What scientific concept do you need to know in order to solve this problem?
Our tutors have indicated that to solve this problem you will need to apply the Electric Potential concept. You can view video lessons to learn Electric Potential. Or if you need more Electric Potential practice, you can also practice Electric Potential practice problems.