CUET Preparation Today
CUET
Physics
Electrostatic Potential and Capacitance
Three charges Q, $+2q$ and $+2q$ are placed at the vertices of an equilateral triangle. If the net electrostatic potential energy of the system is zero, then Q is equal to
$-q$
$+q$
$-2q$
$-q/2$
The correct answer is Option (1) → $-q$