MCQ
Different voltages are applied across a $P-N$ junction and the currents are measured for each value. Which of the following graphs is obtained between voltage and current
  • A
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  • B
    Image
  • Image
  • D
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Answer

Correct option: C.
Image
$P N$ junction has low resistance in one direction of potential difference $+V$, so a large current flows (forward biasing). It has a high resistance in the opposite potential difference direction $-V$, so a very small current flows (Reverse biasing).

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