When the base current in a transistor is changed from `30 mu A`to 80 mu A`,the collector current is changed form 1.0 mA to 3.5 mA. Find the current gain`beta`.

When the base current in a transistor is changed from 30 mu A to80 mu A , the collector current is changed from 1.0 mA to 3.5 mA . Find the current gain beta .

When the base current in a common emitter transistor is changed from 20 mu A to 70 mu A the collector current is changed from 0.5mA to 3.0mA .The current gain is

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.

In CE circuit if base of the transistor is increased from 100 mu A to 150 mu A, then collector current increases to 10 mA from 5 mA. Calculate current gain beta of the transistor.

When the emitter current of a transistor is changed by 1 mA, its collector current changes by 0.990 mA. In the common base circuit, current gain for the transistor is

When the emitter current of a transistor is changed by 1 mA, its collector current changes by 0.990 mA. In the common base circuit, current gain for the transistor is