Two point charges +4 µC and +2 µC repel each other with a force of 8 N. If a charge of -4 µC is added to each of these charges, the force would be
A. zero
B. 8 N
C. 4 N
D. 12 N
Answer:A
Two point charges +4 µC and +2 µC repel each other with a force of 8 N. If a charge of -4 µC is added to each of these charges, the force would be
A. zero B. 8 N C. 4 N D. 12 N