Charge of Uniform Density 50 NC/m³ Is Distributed Throughout the Inside

Multiple Choice

Charge of uniform density 50 nC/m³ is distributed throughout the inside of a long nonconducting cylindrical rod (radius = 5.0 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) .

A) 2.7 V
B) 2.0 V
C) 2.4 V
D) 1.7 V
E) 3.4 V