A npn transistor is connected in common emitter configuration in a given amplifier. A load resistance of 800 is connected in the collector circuit and the voltage drop across it is 0.8 V. If the current amplification factor is 0.96 and the input resistance of the circuit is 192, the voltage gain and the power gain of the amplifier will respectively be:
4, 3.84
3.69, 3.84
4, 4
4, 3.69
As we learnt in
Transistor -
Three layered semiconducting device .
NPN or PNP
- wherein
1. Emitter is heavily doped
2. collector is moderately doped .
3. Base is lightly doped & very thin
Current amplification = 0.96
Voltage gain
Power gain
Option 1)
4, 3.84
Correct
Option 2)
3.69, 3.84
Incorrect
Option 3)
4, 4
Incorrect
Option 4)
4, 3.69
Incorrect