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JEE Main & Advanced Physics Semiconducting Devices Question Bank Semiconductor Diode

  • question_answer
    A potential barrier of 0.50 V exists across a P-N junction. If the depletion region is \[5.0\times {{10}^{-7}}\]m wide, the intensity of the electric field in this region is                                                        [UPSEAT 2002]

    A)            \[1.0\times {{10}^{6}}\,V/m\]                                          

    B)            \[1.0\times {{10}^{5}}\,V/m\]

    C)            \[2.0\times {{10}^{5}}\,V/m\]                                          

    D)            \[2.0\times {{10}^{6}}\,V/m\]

    Correct Answer: A

    Solution :

               \[E=\frac{V}{d}=\frac{0.5}{5\times {{10}^{-7}}}={{10}^{6}}\,\,V/m\].


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