Q. Potential and field strength at a certain distance from a point charge are 600V and $200\ NC^{- 1}$. Distance of the point from the charge is
A) 2m
B) 4m
C) 8m
D) 3m
Explanation
(d) Electric field
$E = - \frac{dV}{dx}$
Given, $V = 600V,\ \ E = 200NC^{- 1}$
$\therefore\ \ dx = \frac{600}{200} = 3m$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.