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

  • question_answer
    The depletion layer in a silicon diode is 1 \[\mu m\] wide and its knee potential is 0.6 V, then the electric field in the depletion layer will be

    A) \[0.6\text{ }V/m\]                                          

    B)  \[6\times 104\text{ }V/m\]

    C) \[6\times 105\text{ }V/m\]                        

    D)  zero

    Correct Answer: C

    Solution :

                     \[E=-\frac{dV}{dr}=\frac{0.6}{{{10}^{-6}}}=6\times {{10}^{5}}V/m\]


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