Test Preparation on Electronics-III-Physics Test Series For NEET 2020
1.
When NPN transistor is used as an amplifier
2.
The phase difference between input and output voltages of
a CE circuit is
3.
An oscillator is nothing but an amplifier with
4.
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
5.
In a common emitter (CE) amplifier having a voltage gain
G, the transistor used has trans conductance 0.03 mho and
current gain 25. If the above transistor is replaced with
another one with trans conductance 0.02 mho and current
gain 20, the voltage gain will be
