Two point charges

PHYSICS · Subjective · CBSE · Physics · Electrostatic Potential and Capacitance · Electrostatic Potential and Capacitance

Problem

Two point charges,

q_1 = +4.0\,\mu\text{C}

and

q_2 = -2.0\,\mu\text{C}

, are held

0.060\,\text{m}

apart. Determine the numerical value of the slope

\dfrac{dU}{dr}

of their electric potential energy function at this separation and state whether the force on

q_1

is directed toward or away from

q_2