Four point charges ,

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

Problem

Four point charges

-Q

-q

2q

and

2Q

are placed, one at each corner of the square. The relation between

Q

and

q

for which the potential at the center of the square is zero is: (a)

Q = -q

(b)

Q = -\frac{1}{q}

(c)

Q = q

(d)

Q = \frac{1}{q}