Question:
Two amplifiers are connected one after the other in series (cascaded). The first amplifier has a voltage gain of 10 and the second has a voltage gain of 20. If the input signal is 0.01 Volt, calculate the output AC signal.
Two amplifiers are connected one after the other in series (cascaded). The first amplifier has a voltage gain of 10 and the second has a voltage gain of 20. If the input signal is 0.01 Volt, calculate the output AC signal.
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In a cascaded amplifier system, the total voltage gain is the product of the individual amplifier gains.
Updated On: Mar 15, 2025
- 0 V
- 1 V
- 2 V
- 3 V
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The Correct Option is C
Solution and Explanation
The total voltage gain of the cascaded amplifiers is the product of their individual gains: \[ {Total Gain} = 10 \times 20 = 200 \] Now, multiply the input signal by the total gain: \[ {Output signal} = 0.01 \times 200 = 2 \, {V} \] Thus, the output AC signal is 2 V.
Final Answer: 2 V.
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