Q)
(chatquestion)...(a) 1:8
18. A charge Q is placed at each of the two opposite corners
of a square. A charge q is placed at each of the other
two corners. If the resultant force on Q is zero, then
(a) Q = /2q
(c) Q =2/2q
(b) Q = -v2q
(d) Q = -2/2q
...
