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Saturday, 11 March 2017

Semiconductor Electronics - IV


Relations between a and b :

The current gains a and b are related as,
Transistor as an amplifier: E
An amplifier is a circuit which is used for increasing the voltage, current or power of alternating form. A transistor can be used as an amplifier.


AC Current Gain:
AC current gain is defined as,
DC Current Gain:
DC current gain is defined as,
Voltage Gain of an Amplifier:
It is defined as,
i.e., Voltage gain = Current gain X Resistance gain

Power Gain of an Amplifier:
It is defined as,

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