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JEE Main & Advanced Physics Electrostatics & Capacitance Question Bank Electric Field and Potential

  • question_answer
    An electron (charge = \[1.6\times {{10}^{-19}}\] coulomb) is accelerated through a potential of 1,00,000 volts. The energy required by the electron is                                                                           [MP PET 1989]

    A)            \[1.6\times {{10}^{-24}}\] joule                                       

    B)            \[1.6\times {{10}^{-14}}\,\,erg\]

    C)            \[0.53\times {{10}^{-14}}\]joule                                      

    D)            \[1.6\times {{10}^{-14}}\] joule

    Correct Answer: D

    Solution :

                 Energy \[=1.6\times {{10}^{-19}}\times 100000=1.6\times {{10}^{-14}}J\]


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