Q18 of 26 Page 1

Draw a circuit diagram of a common emitter amplifier using n-p-n transistor. Derive an expression for the current gain

The common emitter amplifier in n-p-n configuration is as follows:

Current gain in a circuit is defined by the ratio of the collector current(IC) to the base current (IB) when the collector-emitter voltage is constant (VCE).


Hence,


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