Question

C? Vin +10 V R? 47 k? R? 4.7 k? R? 47 k? R? 4.7 k? C? 1 µF Q? R? 10 k? R? 1.0 k? C? 100 µF Q? R? 10 k? R? 1.0 k? C? 100 µF 1 µF Vout Fig. 1: Two-stage RC coupled amplifier 1. Assemble the circuit shown in Fig1 (NOTE: Transistor type is 2N2222A, R$_{Load}$ = 100k?) 2. Apply sinusoidal signal having rms voltage 500 µV and frequency 1 kHz to the input of the amplifier, and record the output voltage. 3. Display input as well as output signal on to the oscilloscope on two different channels simultaneously. 4. Find the voltage gain of each stage. 5. Find the overall voltage gain, current gain and power gain of cascade amplifier at 1 kHz.

          C?
Vin
+10 V
R?
47 k?
R?
4.7 k?
R?
47 k?
R?
4.7 k?
C?
1 µF
Q?
R?
10 k?
R?
1.0 k?
C?
100 µF
Q?
R?
10 k?
R?
1.0 k?
C?
100 µF
1 µF
Vout
Fig. 1: Two-stage RC coupled amplifier
1. Assemble the circuit shown in Fig1 (NOTE: Transistor type is 2N2222A, R$_{Load}$ = 100k?)
2. Apply sinusoidal signal having rms voltage 500 µV and frequency 1 kHz to
the input of the amplifier, and record the output voltage.
3. Display input as well as output signal on to the oscilloscope on
two different channels simultaneously.
4. Find the voltage gain of each stage.
5. Find the overall voltage gain, current gain and power gain of cascade amplifier
at 1 kHz.

C?
Vin
+10 V
R?
47 k?
R?
4.7 k?
R?
47 k?
R?
4.7 k?
C?
1 µF
Q?
R?
10 k?
R?
1.0 k?
C?
100 µF
Q?
R?
10 k?
R?
1.0 k?
C?
100 µF
1 µF
Vout
Fig. 1: Two-stage RC coupled amplifier
1. Assemble the circuit shown in Fig1 (NOTE: Transistor type is 2N2222A, RLoad = 100k?)
2. Apply sinusoidal signal having rms voltage 500 µV and frequency 1 kHz to
the input of the amplifier, and record the output voltage.
3. Display input as well as output signal on to the oscilloscope on
two different channels simultaneously.
4. Find the voltage gain of each stage.
5. Find the overall voltage gain, current gain and power gain of cascade amplifier
at 1 kHz.

Added by James G.

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