A transistor in the common emitter mode can be used as an amplifier. Derive expressions for voltage gain, current gain and power gain in the above transistor configuration

A transistor in the common emitter mode can be used as an amplifier.Design a circuit to amplify an ac signal given in the input region [Hint: Give forward biasing to input region, re verse biasing to output region and take output across a resistor]

With the help of neat circuit diagram obtain an expression for voltage gain of a transistor amplifier in C-E configuration.