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Two free point charges +q and +4q are pl...

Two free point charges `+q and +4q` are placed apart a distance `x`. A third charge is so placed that all the three charges are in equilibrium. Then

A

Unknown charge at `(4q)/(9)`

B

Unknown charge is `(-9q)/(4)`

C

It should be at `(x)/(3)` from smaller charge b/w them

D

It should be at `(2x)/(3)` from smaller charge b/w them.

Text Solution

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The correct Answer is:
A, C
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