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 $0.01 v o l t$ , calculate the output ac signal.

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Solution

$V_{i} = 0.01 V$ , output AC signal voltage is $V_{o}$
Total voltage gain of a two stage cascaded amplifier is given by the product of voltage gains.
$A = A_{1} \times A_{2} = 10 \times 20 = 200$
Also, $A = V_{o} / V_{i}$ , so $V_{o} = 2 V$

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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.

Vi=0.01 V, output AC signal voltage is VoTotal voltage gain of a two stage cascaded amplifier is given by the product of voltage gains.A=A1×A2=10×20=200Also, A=Vo/Vi, so Vo=2V

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 $0.01 v o l t$ , calculate the output ac signal.

$V_{i} = 0.01 V$ , output AC signal voltage is $V_{o}$
Total voltage gain of a two stage cascaded amplifier is given by the product of voltage gains.
$A = A_{1} \times A_{2} = 10 \times 20 = 200$
Also, $A = V_{o} / V_{i}$ , so $V_{o} = 2 V$