Draw the circuit of a CE amplifier using NPN transistor. Obtain the expression for the voltage gain and power gain of CE amplifier.
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The common emitter amplifier is a three basic single stage bipolar junction transistor and is used as a voltage amplifier. The input of this amplifier is taken from the base terminal, the output is collected from the collector terminal and the emitter terminal is common for both the terminals. The basic symbol of the common emitter amplifier is shown below.
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