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Questions and Answers
What happens when a small reverse biased voltage is applied to a heavily doped p-n junction diode?
What happens when a small reverse biased voltage is applied to a heavily doped p-n junction diode?
- The diode stops conducting
- The depletion region widens
- Strong electric field is produced in a small width of depletion region (correct)
- The diode becomes forward biased
What causes the zener breakdown in a p-n junction diode?
What causes the zener breakdown in a p-n junction diode?
- The diode is under no bias
- The diode becomes forward biased
- Covalent bonds in the depletion region are directly broken up by a strong electric field (correct)
- The temperature of the diode increases
What is the result of a large force exerted on covalent bonds in a heavily doped p-n junction diode?
What is the result of a large force exerted on covalent bonds in a heavily doped p-n junction diode?
- The diode becomes forward biased
- Covalent bonds are broken up and large electron hole pairs become free (correct)
- The depletion region widens
- The diode stops conducting
What is the reverse bias voltage at which zener breakdown takes place called?
What is the reverse bias voltage at which zener breakdown takes place called?
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