Q. Four charges $+ Q,\ - Q,\ + Q,\ - Q$ are placed at the corners of a square taken in order. At the centre of the square
A) $E = 0,\ V = 0$
B) $E = 0,\ V \neq 0$
C) $E \neq 0,\ V = 0$
D) $E \neq 0,\ V \neq 0$
Explanation
(a) At centre $E = 0$ and $V = 0$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.