Is beta always constant for a transistor?

It isn’t constant unless you keep the temperature and current the same, then it is relatively constant. That is because the beta, or hFE, is the value it is because of the physical construction of the transistor.

What is Alpha in BJT?

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. It is defined as the change in collector current to base current.

What is the difference between alpha and beta in transistor?

Are alpha and beta parameter of a transistor What is the relation between the two?

There is a transistor given, whose two of the parameters are alpha and beta. A transistor ‘s alpha is the current gain defined as the ratio of change in collector current to change in emitter current in the common base configuration, while beta is the current gain in the \[{\text{CE}}\] configuration.

What are the main constructional difference b WA MOSFET and BJT what effect do they have on the current conduction mechanism of a MOSFET?

The constructional difference between BJT and MOSFET is, BJT has not any metal in its construction but MOSFET has metal oxide as its name suggests. 9. The switching speed of MOSFET faster than BJT.

Which of the following device has features of both MOSFET and BJT?

Insulated Gate Bipolar Transistor (IGBT) is a three-terminal power semiconductor device primarily used as an electronic switch. It is a 4-layer PNPN device that combines an insulated gate N-channel MOSFET input with a PNP BJT output in a type of Darlington configuration.

What is beta in BJT transistor?

That’s a good start, but we need to be more precise: beta is the factor of proportionality between the base current and the collector current of a bipolar junction transistor that is operating in the forward active mode.