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Three point charge Q,4Q and 16Q are plac...

Three point charge `Q,4Q` and `16Q` are placed on a straight line `9`cm long.Charges are placed in such a way that the system has minimum potential energy .Then

A

4Q and 16Q must be at the ends and Q at a distance of 3 cm from the 16Q

B

4Q and 16Q must be at the ends and Q at a distance of 6 cm from the 16Q

C

Electric field at the position of Q is zero

D

Electric field at the position of Q is `Q/(4piepsilon_0)`

Text Solution

Verified by Experts

The correct Answer is:
B, C
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