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JEE Main & Advanced Physics Semiconducting Devices Question Bank Semiconductor Diode

  • question_answer
    When forward bias is applied to a P-N junction, then what happens to the potential barrier \[{{V}_{B}}\], and the width of charge depleted region x                   [UPSEAT 2002, 03; Roorkee 1999; RPET 2003; AIEEE 2004]

    A)            \[{{V}_{B}}\] increases, x decreases

    B)            \[{{V}_{B}}\] decreases, x increases

    C)            \[{{V}_{B}}\] increases, x increases

    D)            \[{{V}_{B}}\] decreases, x decreases

    Correct Answer: D

    Solution :

               In forward biasing both VB and x decreases.


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