Three charge +4q, Q and q are placed in a straight line of length λ at points distance x = 0, x = λ /2 and x = λ respectively. What should be the value of Q in order to make the net force on q to be zero?
Text Solution
Verified by ExpertsThe correct answer is:
A
FNet on Q = 0
⇒ K. 
+K. 
= 0 ⇒ Q = –q
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