1.

In a junction transistor, the current gain B is defined as

Answer»

The ratio of the change in COLLECTOR current to the change in EMITTER current for a CONSTANT collector voltage in the COMMON base configuration.
he ratio of change in emitter current to the change in base current for constant emitter voltage in common emitter configuration.
The ratio of change in collector current to the change in base current for constant collector voltage in CE configuration.
The ratio of change in base current to the change in collector current for constant collector voltage in CE configuration 

Solution :The current gain `BETA` is defined as the ratio of change in collector current to change is base current to change in base current for constant collector voltage in the common base configuration.
`beta=((DeltaI_(C ))/(DeltaI_(B)))_(V_(CE))`


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