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In which of the following cases, MOSFET is helpful? (I) Switch for LED (II) Switch with hysteresis (III) Switching Solenoid

In which of the following cases, MOSFET is helpful? (I) Switch for LED (II) Switch with hysteresis (III) Switching Solenoid Correct Answer I, II & III

MOSFET (Metal Oxide Semiconductor Field Effect Transistor):

MOSFET transistor is a semiconductor device that is used for amplifying and switching electronic signals in electronic devices.

MOSFET is of two types:

1. Enhancement MOSFET:

  • In this kind of MOSFET, there is no predefined channel. The channel is constructed using the gate to source applied voltage.
  • The more is the voltage on the gate, the better the device can conduct.

2. Depletion mode MOSFET:

  • In this type of MOSFET, the channel (between drain and source) is predefined and the MOSFET conducts without any application of the gate voltage.
  • As the voltage on the gate is either positive or negative,  the channel conductivity decreases.
  • Depletion MOSFET can work in both depletion and enhancement mode.

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MOSFET can be used in multiple ways such as:

  • MOSFET as a switch for LED.
  • MOSFET as a switch for Arduino.
  • MOSFET switch for ac load.
  • MOSFET switch for dc motor.
  • MOSFET switch for negative voltage.
  • MOSFET as a switch with a microcontroller.
  • MOSFET switch with hysteresis.
  • MOSFET as switch diode and active resistor.
  • MOSFET as a switch equation.
  • MOSFET switch for airsoft.
  • MOSFET as switch gate resistor.
  • MOSFET as a switching solenoid.
  • MOSFET switch using an optocoupler.

Related Questions

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The Transfer characteristic of the different types of MOSFETs is shown below, where ID is drain current and VGS is the Gate-Source voltage, the correct combination of MOSFET w.r.t to transfer characteristics is: Types of MOSFET (P) P – Channel Enhancement MOSFET (Q) P – Channel Depletion MOSFET (R) N – Channel Enhancement MOSFET (S) N – Channel Depletion MOSFET
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4. Switch (config-if) # switchport port-security violation shutdown
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2. Ratio analysis is helpful in communication and coordination.
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3. A CFL is less energy efficient as compared to an LED lamp.
Which of the statements given above is/are correct?