Two amplifier are connected one after the other in series (cascad… - Vidyadip

MCQ

Two amplifier are connected one after the other in series (cascade). The first amplifier has a voltage gain $10$ and the second has a voltage gain of $20$. If the input signal is $0.01\, V$, the out $ac$ signal will be........$V$

A
$4$
B
$1$
✓
$2$
D
$6$

✓

Answer

Correct option: C.

$2$

c
Total gain $=\mathrm{m}_{1} \times \mathrm{m}_{2}=200=\frac{\mathrm{v}_{0}}{\mathrm{V}_{\mathrm{i}}}$

$\mathrm{V}_{\mathrm{o}}=200 \times 0.1=2 \mathrm{volt}$

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