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Three point charges Q, 4Q and 16Q are pl...

Three point charges 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 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)/(4pi epsilon_(0))`.

Text Solution

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The correct Answer is:
B, C
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