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easyMCQNEET 2020 E12026Physics
1 mark

The increase in the width of the depletion region in a p-n junction diode is due to:

  1. A
    forward bias only
  2. B
    reverse bias only
  3. C
    both forward bias and reverse bias
  4. D
    increase in forward current

Solution & Step-by-step Explanation

In reverse bias, the majority charge carriers are pulled away from the junction, increasing the thickness of the region devoid of mobile charge carriers. Hence, the width of the depletion region increases. In forward bias, it decreases.Shutterstock

Practice this question

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The increase in the width of the depletion region in a p-n junction diode is due to:
A
forward bias only
B
reverse bias only
C
both forward bias and reverse bias
D
increase in forward current

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Semiconductor ElectronicsP-N Junction

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