The ac current gain in a transistor in CE mode is 120. What is the change in the collector current in the transistor whose base current changes by 100`muA`?

beta of a transistor is 120A. What is the change in collector current for 100muA change in base current?

In a transistor, the base current is changed by 20muA . This results in a change of 0.02V in base emitter voltage and a change of 2mA in the collector current. .If the transistor is used as an amplifier with load resistance of 5KΩ .Find its voltage gain.

How does the dc current gain of a transistor change, if the width of the base region is increased?

If the base region of a transistor is made large as compared to the usual transistor ,how does it affect current gain of the transistor?

The collector current in a transistor changes from 1.5 mA to 3.5 mA when the base current is changed from 20 muA to 60muA . Find the current gain.

The input resistance of a silicon transistor is 100 Ω. Base current is changed by 40μA which results in a change in collector current by 2 mA. This transistor is used as a common emitter amplifier with a load resistance of 4K Ω. Find the voltage gain of the amplifier.