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Q.

Three charged particles are free to move, in this position P.E of system is $u_{1}$ . Three charged particles are brought nearer to one another and P.E of system now is $u_{2}$ then

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a

$u_{1} > u_{2}$

b

$u_{2} > u_{1}$

c

$u_{2} = u_{1}$

d

$u_{2} \leq u_{1}$

answer is B.

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Detailed Solution

$u_{2} > u_{1} (u \propto \frac{1}{r})$

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