engineering recuitment AAI ATC Junior Executive 2025 Mock Test Series Physics Electric Charges and Coulomb's Law Coulomb’s Law
Two charges 4q and q are placed at a distance I, another charge Q is placed at the midpoint of the line joining the charges 4q and q. If net force on charge q is zero, then value of Q is:
1
+q
2
-q
3
+2q
4
3q