Assume that an electric field exists in space

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

Problem

Assume that an electric field

\vec{E} = 30x^2\hat{i}

exists in space. Then the potential difference

V_A - V_O

, where

V_O

is the potential at the origin and

V_A

the potential at

x = 2 \text{ m}

is: (1)

120 \text{ J/C}

(2)

-120 \text{ J/C}

(3)

-80 \text{ J/C}

(4)

80 \text{ J/C}