Three charges +Q, q, +Q are placed respectively, at distance 0, d/2, a – McqOptions

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1.	Three charges +Q, q, +Q are placed respectively, at distance 0, d/2, and d from the origin, on the x-axis. If the net force experienced by +Q, placed at x = 0 is zero, then value of q is:
A.	-Q/4
B.	+Q/2
C.	+Q/4
D.	-Q/2
Answer» B. +Q/2

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