Three point charges 4q, Q and q are placed in a straight line of length $l$ as shown. The net force on charge q is zero when value of q is:
Answer & explanation
Correct answer: option 1
The correct answer is Option (1) → -Q
Three point charges 4q, Q and q are placed in a straight line of length $l$ as shown. The net force on charge q is zero when value of q is:
Correct answer: option 1
The correct answer is Option (1) → -Q