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MGIMS WARDHA MGIMS WARDHA Solved Paper-2011

  • question_answer
    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

    A)  \[{{U}_{1}}={{U}_{2}}\]                               

    B) \[{{U}_{2}}\ge {{U}_{1}}\]

    C)  \[{{U}_{2}}>{{U}_{1}}\]                               

    D)  \[{{U}_{1}}>{{U}_{2}}\]

    Correct Answer: D

    Solution :

                     The system of particles when left to themselves tend to move towards position where their potential energy is minimum. Therefore,\[{{U}_{2}}<{{U}_{1}}\]or\[{{U}_{1}}>{{U}_{2}}\].


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