In transistors, current gain plays a significant role. In h parameters, one of the parameters is hfe which is current gain. It is easier if the parameters chosen represent some significant properties of the device. Some other parameters of importance in transistors are input resistance hie and output resistance 1/hoe.
So it makes sense to analyse transistors with h parameters.
A transistor
transistor has 2 output 1 and 0 so can be used as a switch
as voltage amplifiercurrent followeri am yoges
A transistor is an electronic component. By itself it has little use. An amplifier is a complete, functional circuit, generally made up of several components. A transistor can be a component part of an amplifier, however an amplifier may be constructed without any transistors (using vacuum tubes instead, for instance).
With a common emitter amplifier it's the emitter that is usually grounded.
A transistor does not act as an amplifier. It is used as a component in an amplifier circuit.
A PNP transistor has no advantage or disadvantage over an NPN transistor in its ability as an amplifier. Rather, the current-handling capacities of the transistor determine if it's usable as an amplifier.
That depends on both the input signal and the type of amplifier the transistor is used in.
A transistor
it doesn't have to be. depends on design of amplifier using transistor.
Common Emitter - Class A Amplifier.
cascade: the output of one amplifier stage is connected to the input of another amplifier stages, it's also connected in series. cascode: it said to be cascode, when it has one transistor on the top of another where a common emitter transistor drives a common base transistor.
transistor has 2 output 1 and 0 so can be used as a switch
It lies in middle of the DC load line of that Amplifier.
as voltage amplifiercurrent followeri am yoges
A transistor is an electronic component. By itself it has little use. An amplifier is a complete, functional circuit, generally made up of several components. A transistor can be a component part of an amplifier, however an amplifier may be constructed without any transistors (using vacuum tubes instead, for instance).
Biasing is necessary in a transistor circuit to keep the transistor working. Without proper biasing, the circuit will fail