What are the different configurations of transistors with respect to gain?

The different configurations of the transistor with respect to gain are Common base (CB) configuration (no current gain but voltage gain) Common Emitter (CE) Configuration (current gain and voltage gain) Common Collector (CC) Configuration (current gain but no voltage gain)

What is mostly used transistor configuration?

The transistor in CE mode, Common Emitter (CE) Configuration is mostly used for many applications.

Why is the CE transistor mostly preferred?

CE transistor is mostly preferred for all applications because of its current gain and voltage gain, And its input resistance is also higher which is suitable for audio signal amplification.

Define Transition Frequency \(f_T\)?

Transition Frequency \(f_T\): Refers to the frequency at which the current gain falls to unity. The transistor should always be operated under this frequency

State the necessity of transistor configurations?

when a transistor is to be connected in a circuit, we require four terminals two for the input and two for the output. This difficulty is overcome by making one terminal of the transistor common to both input and output terminals, The input is fed between this common terminal and one of the other two terminals The output is obtained between the common terminal and the remaining terminal.