Mell What is the advantage of FET over BJT?
FETs are more temperature stable than BJTs. FETs are generally easier to fabricate than BJTs. Greater numbers of devices can be fabricated on a single chip (i.e., increased packing density is possible). FETs react like voltage-controlled variable resistors for small values of drain-to-source voltage.
What is the difference between BJT and FET transistors?
The major difference between BJT and FET is that in a field-effect transistor only majority charge carries flows, whereas in BJT both majority and minority charge carriers flow….Difference between BJT and FET.
| BJT | FET |
|---|---|
| BJT gain is more | FET gain is less |
| Its output impedance is high due to high gain | Its output impedance is low due to low gain |
What is the disadvantage of FET over Mosfet?
Drawbacks or disadvantages of FET ➨Transconductance is low and hence voltage gain is low. ➨FET has slower switching times compare to BJT. ➨They are more costly compare to junction transistors. ➨FET of MOSFET type is very susceptible to overload voltages, hence special handling is required during installation.
What are the similarities between BJT and FET?
A BJT or FET both shares the same category of transistors. These transistors have the property of both conduction as well as insulation. BJT, as well as FET, consists of three basic terminals in it. These transistors are found everywhere as the basic components of electronic systems.
Which of the following option is true for FET?
FET is a three-terminal voltage control uni-polar device (only majority/minority carriers involved in the operation)….Solution:
| FET | BJT |
|---|---|
| High input resistance | Input impedance less than FET |
| Slower in switching | Faster in switching |
What are the disadvantages of a BJT transistor?
There are some disadvantages of BJT (bipolar junction transistor) which are given below, The BJT is more an effect of radiation. It has a very complex base control. So it may lead to confusion and requires a skilful handling. The switching frequency of a BJT is low. It more noise produced. It has a low thermal stability.
What are the advantages of FET over transistor?
Since base current noise will increase with training time, a FET typically produces less noise than a bipolar transistor (BJT) and is thus found in noise-sensitive electronics such as tuners and low noise amplifiers for receivers VHF and satellite main advantage of fet.
Which is a disadvantage of a field effect transistor?
FETs have a poor frequency response due to its high input capacitance FETs have a very poor linearity, and generally they are less linear than Bipolar Juntion Transistor
What are the advantages of FET over BJT?
Advantages of fet over bjt in tabular form sr no. FET BJT 1 Uni polar Device Bipolar device 2 Voltage Controlled device Current control device 3 High input impedance low input impedance 4 better thermal stability low thermal stability