A) both junctions are forward biased
B) both junctions are reverse biased
C) the emitter-base junction is forward biased and the collector-base junction is reverse biased
D) no biasing voltages are required
Correct Answer: C
Solution :
A transistor consists of two p-n junctions one forward biased (emitter-base) and the other reverse biased (collector-base), this combination is used for amplifying a weak signal. The forward bias junction has a low resistance path whereas the reverse bias junction has a high resistance. The weak input signal is applied across forward biased and the output signal is taken across reverse biased junction.
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