Questions

What do you mean by input and output characteristics of a common emitter NPN BJT?

What do you mean by input and output characteristics of a common emitter NPN BJT?

Input is between the base and emitter. The output is between the collector and emitter. Input characteristics are the variation of base current (IB) with the base-emitter voltage (VBE). Output characteristics are the variation of collector current (IC) with the collector-emitter voltage (VCE).

What are the input and output parameters of common base configuration?

Common Base (CB) Configuration of Transistor In CB Configuration, the base terminal of the transistor will be common between the input and the output terminals as shown by Figure 1. This configuration offers low input impedance, high output impedance, high resistance gain and high voltage gain.

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What is difference between PNP & NPN transistor explain input & output characteristics of common base circuit?

The working principle of pnp transistor with CB configuration is same as the npn transistor with CB configuration. The only difference is in npn transistor free electrons conduct most of the current whereas in pnp transistor the holes conduct most of the current. Output characteristics.

How will you determine the input and output characteristics of CE connection experimentally?

To determine the input characteristics, the output voltage VCE is kept constant at zero volts and the input voltage VBE is increased from zero volts to different voltage levels. For each voltage level of input voltage (VBE), the corresponding input current (IB) is recorded.

What are the characteristics of NPN transistor?

Generally the NPN transistor is the most used type of bipolar transistors because the mobility of electrons is higher than the mobility of holes. The NPN transistor has three terminals – emitter, base and collector. The NPN transistor is mostly used for amplifying and switching the signals.

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How do NPN and PNP transistors differ in construction?

An NPN transistor has a piece of P-type silicon (the base) sandwiched between two pieces of N-type (the collector and emitter). In a PNP transistor, the type of the layers are reversed. NPN and PNP transistors have very similar schematic symbols. The only difference is the direction of the arrow on the emitter.

How do you compare the input characteristics of the transistor with that of forward characteristics of a diode?

One of the major difference between the diode and the transistor is that the diode converts the alternating current into direct current while the transistor transfers the input signals from the low resistance circuit to high resistance circuit.

What is the phase relation between input and output?

Detailed Solution. The phase difference between the output and input of a CE amplifier is 180°.