A charge Q is placed at each of the opposite corners of a square
A charge Q is placed at each of the opposite corners of a square. A charge q is placed at each of the other two corners. If the net electrical force on Q is zero, then Q/q equals
- -1
- 1
- -2√2
- -1/√2
Answer
(KQ)/(2a2) = (√2)KQ/a2
|Q/q| = 2√2
So,
Q/q = -2√2
The correct option is C.