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Potential Energy of a System of Multiple Point Charges

Three charged...

Question

Three charged particles are initially in position-1. They are free to move and they come to position -2, after some time.Let $U_{1}$ and $U_{2}$ be the electrostatic potential energies in position-1 and 2.Then

U_{1} = U_{2}

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U_{2} \geq U_{1}

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U_{2} > U_{1}

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U_{1} > U_{2}

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Solution

The correct option is D $U_{1} > U_{2}$
The system of particles when left to themselves tend to move towards position where their potential energy is minimum.Therefore
$U_{2} < U_{1} o r U_{1} > U_{2}$

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