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Learning Introductory Physics with Activities

Section 23.5 Challenge - Electric Energy and Potential

Explanation 23.5.1. Electric Potential of a Wire.

Figure 23.5.1. A charged wire lies along the y-axis with one end starting at the origin.
The wire shown above has one end located at the origin. The wire has length \(L\) and a non-uniform charge density \(\lambda = \frac{q_o y}{L^2}\text{.}\) Points A and B are located a distance \(x_o\) from the top and bottom ends of the wire, respectively.
Is the electric potential at point A greater than, less than, or equal to the electric potential at point B?

A*R*C*S 23.5.2. Charged Ring.

A uniformly charged ring with total charge \(-q_o\) and radius \(R\) is located in the \(xy\)-plane. Determine the electric potential a distance \(z\) above the center of the ring
Tip.
Evaluate your answer in at least two special cases

Subsection Metacognitive Reflection