Transistor:
- A transistor is a kind of miniature semiconductor device that can regulate or control current or voltage flow in any direction.
- It can also amplify and can generate these electrical signals and act as a switch/gate for them.
- Basically, a transistor consists of three layers, or say terminals, of some semiconductor material, each of which can carry some quantity of current.
Transistor gain:
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- When we undertake some calculations, while we design an electronic circuit, the transistor current gain often terms in the Greek letter Beta
- This is known as forwarding current gain for the transistor while operating in a common emitter type of mode.
- The factor is called Beta, which is known as the common emitter current gain.
- The current gain for the common-base configuration may be defined as the change in collector current divided by the change in emitter current when we keep the base-to-collector voltage constant.
The common emitter current gain is transistor gain.