Scenario I: Two point charges +q and +2q are separated by a distance d in vacuum
PHYSICS · Single correct · CBSE · Physics · Electrostatic Potential and Capacitance · Electrostatic Potential and Capacitance
Problem
Scenario I: Two point charges +q and +2q are separated by a distance d in vacuum, giving a potential energy U_I.
Scenario II: The same charges are separated by a distance d⁄2 inside a material with relative permittivity ε_r = 4, giving a potential energy U_II.
What is the ratio U_II ⁄ U_I?
(a) 2.0
(b) 0.125
(c) 0.50
(d) 1.0