Question

An npn bipolar junction transistor (BJT)is operating in the active region. If the reverse bias across the base-collector junction is increased, then

Answer 1

Ans : (c)

When a BJT is in active region, as the reverse bias voltage across collector-base junction increased, the width of depletion region increases, which results in decreases of effective base width. This decrease in effective base width reduces the recombination in base region, hence common-emitter current gain will increase.