(Solved): QUESTION 3 (a) In a Bipolar Junction Transistor (BJT), there are 3 possible modes of operation whi ...

QUESTION 3 (a) In a Bipolar Junction Transistor (BJT), there are 3 possible modes of operation which are active, saturation and cut-off region. Complete Table Q3(a) whether the Base- Collector (B-C) and Base-Emitter (B-E) junctions are in forward-biased or reverse biased for each mode. Assume the BJT is the NPN type. (b) Mode Forward-active Saturation Cut-off Junction (i) For the Bipolar Junction Transistor (BJT) amplifier circuit in Figure Q3(b). Determine the DC values of IBQ, Ico, VCEQ, Vc and VE 0.6 ?? Table Q3(a) Base-Collector (B-C) V?o M (C3, SP3) [8 marks] The addition of the emitter resistor to the DC bias of the BJT provide improved stability. Explain that statement. 430 ??? 10 ?F + 20 V <2kQ HE 10 ?F B=50 ???? 40 µF (C1, SP1) [3 marks] o Vo 34.7 ?? Figure Q3(b): BJT Amplifier Circuit Base-Emitter (B-E) (C2, SP3) [2 marks]