Question

Draw a circuit diagram of n-p-n transistor amplifier in CE configuration. Under what condition does the transistor act as an amplifier?

Answer 1

The circuit diagram of n-p-n transistor amplifier in CE configuration is given below :


Condition : The transistor behaves as an amplifier when the input circuit (emitter - base junction) is forward biased having low voltage $B_{BB}$ and the output circuit (collector-emitter junction) is reverse biased having high voltage $V_{CC}$.