What is the main application of a field effect transistor FET Mcq?

FET is a voltage controlled device. Explanation: Field Effect Transistors are voltage controlled devices, by applying some voltage between the gate and source, the drain current can be controlled.

What are the important application of JFET?

JFET Applications Used as an amplifier. Used as a buffer. Used in the oscillatory circuits because of its low frequency drift. Used in digital circuits, such as computers, LCD and memory circuits because of their small size.

What is field effect transistor?

The field-effect transistor (FET) is a type of transistor that uses an electric field to control the flow of current in a semiconductor. FETs are devices with three terminals: source, gate, and drain. Field effect transistors generally display very high input impedance at low frequencies.

When transistors are used in digital circuits?

We can use the transistor in the digital circuits to obtain switching operation. The current flow needs to be controlled in the digital circuits for better performance and desirable output. We can stop the current flow by switching off mode and flow the current by the switch on mode.

Where are FET transistors used?

amplifier
FET is commonly used as an amplifier. For example, due to its large input resistance and low output resistance, it is effective as a buffer in common-drain (source follower) configuration.

What are the applications of JFET and Mosfet?

The JFET is used as an electronic switch. The JFET is used as a phase shift oscillator. The JFET is used as high impedance wide band amplifier. The JFET is used as a voltage variable resistor (VVR) or voltage development resistor (VDR).

What kind of device is a field effect transistor?

The field-effect transistor (FET) is a type of transistor that uses an electric field to control the flow of current in a semiconductor. FETs are devices with three terminals: source, gate, and drain.

What are the types of field effect transistor?

There are two types of field-effect transistors, the Junction Field-Effect Transistor (JFET) and the “Metal-Oxide Semiconductor” Field-Effect Transistor (MOSFET), or Insulated-Gate Field-Effect Transistor (IGFET).

When a transistors is used as a swich it operate in the region?

Transistor acts as a switch in the saturation region and cutoff region. The emitter-base junction and the collector-base junction is reverse biased in the cutoff region.

Which transistor is used in VLSI?

3. Moore’s law

What are the main applications of BJT?

Applications of BJT

• Switching.
• Amplification.
• Converters.
• Automatic switch.
• Temperature sensors.
• Electronic switches.
• Amplifiers.
• High driving capability.

Why is it called field effect transistor?

FETs are special type of transistors which are controlled by the voltage applied across the input terminal called the ‘Gate’. The electric field produced due to this gate voltage controls the operation of the FET . Thus as they are dependent on the ‘field’ applied across their input ,they are called so.

What are the types of field effect transistors?

JFET. The JFET stands for Junction-Field-Effect transistor.

Why are we called as field effect transistor?

Why the name Field Effect Transistor. This transistor is called Field Effect Transistor because the control of output current (drain current) is the effect of the extension of the field associated with the depletion region caused by the reverse bias at the gate. Static Characteristic Curves of Field Effect Transistor (FET)

What is field effect transistor (FET)?

A field-effect transistor (FET) is a type of transistor commonly used for weak-signal amplification (for example, for amplifying wireless signals).

What is field-effect transistor (FET)?

The field-effect transistor ( FET) is a type of transistor that uses an electric field to control the flow of current in a semiconductor. FETs are devices with three terminals: source, gate, and drain. FETs control the flow of current by the application of a voltage to the gate, which in turn alters the conductivity between the drain and source.