In the use of transistor as an amplifier

the emitter - base junction is reverse biased and the collector base junction is also reverse biased.

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the emitter - base junction is forward biased and the collector - base junction is reverse biased.

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both the junctions are forward biased.

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any of the two junctions may be forward biased.

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Solution

The correct option is C the emitter - base junction is forward biased and the collector - base junction is reverse biased.
In the use of transistor as an amplifier in common base mode, the emitter-base junction is forward biased and the collector-base junction is reverse biased.

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(2) The base region must be very thin and lightly doped.
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In a normal operation of a transistor,
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(b) the base−collector junction is forward-baised
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(d) the base−collector junction is reverse-baised.

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In the use of transistor as an amplifier

The correct option is C the emitter - base junction is forward biased and the collector - base junction is reverse biased.In the use of transistor as an amplifier in common base mode, the emitter-base junction is forward biased and the collector-base junction is reverse biased.

The correct option is C the emitter - base junction is forward biased and the collector - base junction is reverse biased.
In the use of transistor as an amplifier in common base mode, the emitter-base junction is forward biased and the collector-base junction is reverse biased.