Q160 / 200 · MHT CET - Medical 2026 (23 April Shift 1) · Physics
Current through a reverse biased p-n junction, increases abruptly at
- A$0.0$ V
- B$0.8$ V
- Correct answerCbreak-down voltage.
- Dknee voltage.
Solution
In a reverse biased p-n junction, the reverse current is initially very small and almost constant, known as the reverse saturation current.
When the applied reverse voltage is increased and reaches a critical value, a large number of covalent bonds break due to high electric field or collision of minority carriers, resulting in a sudden increase in the number of charge carriers.
This causes the reverse current to increase abruptly. This critical voltage is called the break-down voltage.
Answer: break-down voltage.
When the applied reverse voltage is increased and reaches a critical value, a large number of covalent bonds break due to high electric field or collision of minority carriers, resulting in a sudden increase in the number of charge carriers.
This causes the reverse current to increase abruptly. This critical voltage is called the break-down voltage.
Answer: break-down voltage.
Hence, the correct answer is option: 'C'.