Question

what would happen if both junctions of bjt are forward biased or reverse biased

Answer 1

Answer:

Explanation:

If both junctions are reverse biased the transistor is switch off since the currents will be very small in the order of the reverse saturation current and the reverse is true that is the transistor will be switch on and saturated when the 2 junctions are forward biased.In this case the transistor currents are relatively large and the voltages are relatively small. WHEN the emitter junction is forward biased and the collector junction is reverse biased the transistor will be forward active and capable to amplify signals and if the bias is reversed the transistor will be reverse active..

Answer 2

Answer:

If both junctions are reverse biased the transistor is switch off since the currents will be very small in the order of the reverse saturation current and the reverse is true that is the transistor will be switch on and saturated when the 2 junctions are forward biased.