Charge of uniform density 90 nC/m3 is distributed throughout the inside of a long non-conducting cylindrical rod (radius = 2.0 cm).Determine the magnitude of the potential difference of point A (2.0 cm from the axis of the rod) and point B (4.0 cm from the axis).

Question

Quizplus · Accepted Answer

The potential difference between two points inside and outside a uniformly charged cylindrical rod can be calculated using Gauss's law and the concept of electric potential. For a point inside the rod (A), the electric field is proportional to the distance from the axis, while for a point outside (B), it behaves as if all the charge were concentrated along the axis. Calculating the potential difference involves integrating the electric field from A to B, resulting in approximately 1.4 V.

Charge of Uniform Density 90 NC/m3 Is Distributed Throughout the Inside