The voltage gain of a common-emitter amplifier is given by the formula:
\[A_v = -\frac{R_c}{R_e}\]
where \(R_c\) is the collector resistor and \(R_e\) is the emitter resistor.
In the first stage, the collector resistor is \(R_{c1} = 10k\Omega\) and the emitter
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