The electric potential (in volts) created by a point charge located at along the…

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

Problem

The electric potential (in volts) created by a point charge located at

x=0

along the

x

-axis is

V(x)=\frac{12}{x}, \qquad x>0.

The electric field is defined by

E(x)=-V'(x)

. Determine

\displaystyle \lim_{x\to 0^+} E(x)

and explain the physical significance of this limit.