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Point charge + 4q,-q and +4q are kept on...

Point charge + 4q,-q and +4q are kept on x-axis at points x=0,x= a and x= 2a respectively :

A

Only -q is stable equilibrium

B

all the charges are in stable equilibrium

C

all the charges are in unstable equilibrium

D

none of the charges in equilibrium

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The correct Answer is:
B
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MBD PUBLICATION-ELECTRIC CHARGES AND FIELDS-QUESTION BANK
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