Question

Define current gains α and β of a transistor

Answer 1

Answer:

Alpha of a transistor is the current gain in common base configuration defined as the ratio of change in collector current to change in emitter current while beta is the current gain in CE configuration. ... The maximum value of alpha is one whereas beta value ranges from 50 to 250.The terms Alpha and Beta refer to BJTs, Bipolar Junction Transistors. In these devices current leaves the emitter and crosses to the base and most is diverted towards the collector. ... Beta is the current gain, the ratio of Ic to Ib