J & K CET Medical J & K - CET Medical Solved Paper-2008

  • question_answer
    Electron of mass m and charge e in external field E experiences acceleration

    A) \[\frac{e}{mE}\] in the opposite direction to the field

    B)  \[\frac{eE}{m}\] in the direction of the field m

    C)  \[\frac{em}{E}\], in the direction of the field

    D)  \[\frac{eE}{m}\], in the opposite direction of the field m

    Correct Answer: B

    Solution :

                                 \[F=qE\] or          \[ma=qE\] \[\Rightarrow \]               \[a=\frac{qE}{m}\] or       \[a=\frac{eE}{m}\] in the direction of the field.


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