Transistor - Action
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Description:
As the connection between emitter and base is forward biased the depletion layer at E-B junction shrinks. If the voltage supplied crosses the cutting voltage, depletion layer will demolish.
Resistance in the circuit between emitter and base is decreased hence, current in circuit is increased.
This results in the flow of current.
The connection between base and collector is reverse biased the depletion layer at C-B junction gets wider.
Resistance in the circuit between collector and base is increased hence, current in circuit is decreased.
As a result, the current carried by majority charge carrier is stopped but reverse current will continue to flow.
i.e. there is a transfer of resistor and hence the name is given as Transistor.
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