Two electrodes separated by a distance are maintained at a constant potential difference,

PHYSICS · Single correct · CBSE · Physics · Electrostatic Potential and Capacitance · Electrostatic Potential and Capacitance

Problem

Two electrodes separated by a distance

d

are maintained at a constant potential difference,

V

. When an electron moves from one of the electrodes to the other, its gain in kinetic energy is

E

. The distance between the two electrodes is increased to

2d

. When an electron moves from one of the electrodes to the other, what will its gain in kinetic energy be? (1)

\frac{E}{4}

(2)

\frac{E}{2}

(3)

E

(4) 2E