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What is the difference between emitter base and collector?
The base is the gate controller device for the larger electrical supply. The collector is the larger electrical supply, and the emitter is the outlet for that supply. By sending varying levels of current from the base, the amount of current flowing through the gate from the collector may be regulated.
What is the difference between the collector-base and emitter base junction bias voltages?
The emitter-base circuit is in forward biased and offered the low resistance to the circuit. The collector-base junction is in reverse bias and offers the higher resistance to the circuit. The base of the transistor is lightly doped and very thin due to which it offers the majority charge carrier to the base.
What is the size comparison between base-emitter and collector?
This is because the work of the emitter is to supply charge carrier to the collector via the base. The size of the emitter is more than base but less than the collector. Base: The size of the base region is extremely small, it is less than emitter as well as the collector.
Which is the smallest region in a transistor?
base current IB
The base current IB is always the smallest. The collector current IC and emitter current IE are relatively close in magnitude.
How is the emitter different from the base and collector?
Working of Transistor Emitter: Emitter terminal is the heavily doped region as compared two base and collector. This is because the work of the emitter is to supply charge carrier to the collector via the base. The size of the emitter is more than base but less than the collector.
What is the be voltage between base and emitter?
As the first figure shows, for any decently large base current the voltage drop between the base and the emitter will be around 0.6 to 0.7 V. Mathematically, this means that the BE voltage is the log of the current.
How to calculate the input characteristics of a common emitter configuration?
Input Characteristics Curve of Common Emitter Configuration: It is the function of base current IB and VBE (base-emitter voltages) at constant collector-emitter voltage VCE. Input characteristics curve can be obtained by keeping the output voltage VCE constant and varying the input voltage VBE and then record the value.
Why is VBE a constant 0.7 for a transistor in the active?
The base emitter junction is a PN junction or you can consider that as a diode. And the voltage drop across a silicon diode when forward biased is ~0.7V. That is why most of the books write V B E = 0.7 V, for an NPN silicon transistor with forward biased emitter junction at room temperature. But V B E for a particular transistor is not constant.