Physics · Semiconductors
Which of the following statements is correct for a PNP transistor?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1When the PNP transistor is working as an OFF switch, the depletion width of the P-type emitter is wider than that of the N-type base.
- 2If both the emitter-base junction and collector-base junction are forward-biased, the transistor can work as an amplifier.
- 3When the PNP transistor is working as an ON switch, the depletion width of the P-type emitter is wider than that of the N-type base.
- 4When a PNP transistor operates as an amplifier, the base-emitter junction is forward biased, while the collector-base junction is reverse biased.✓
Correct answer
When a PNP transistor operates as an amplifier, the base-emitter junction is forward biased, while the collector-base junction is reverse biased.
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