12th Class Physics Sample Paper Physics Olympiad Sample Paper-4

  • question_answer
    A charged particle of mass m and charge q is released from rest in an electric field of constant magnitude E. The kinetic energy of the particle after time t is  

    A)  \[\frac{{{E}^{2}}{{q}^{2}}{{t}^{2}}}{2m}\]         

    B)  \[\frac{2{{E}^{2}}{{t}^{2}}}{mq}\]

    C)  \[\frac{Eqm}{2t}\]        

    D) \[\frac{2{{q}^{2}}m}{2{{t}^{2}}}\]

    Correct Answer: A

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