Identify the device based on the given symbol.

F8 Jai Prakash 29-12-2020 Swati D1

This question was previously asked in
SSC JE EE Previous Paper 9 (Held on: 29 Oct 2020 Evening)
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  1. N-channel JFET
  2. P-channel JFET
  3. N-channel MOSFET
  4. P-channel MOSFET

Answer (Detailed Solution Below)

Option 1 : N-channel JFET
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Detailed Solution

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Explanation:

FET is classified based on the channel in each type.

Based on the channel there are two types:

1) n – channel FET

2) p – channel FET

Based on the formation of the channel

1) JFET

2) Depletion  MOSFET

3) Enhancement MOSFET

Field Effect Transistor also has the fourth terminal which is called as “ Body or Substrate”

n – channel JFET

F1 Shubham Madhu 14.08.20 D15

p – Channel JFET

F1 Shubham Madhu 14.08.20 D16

n – channel Depletion MOSFET

F1 Shubham Madhu 14.08.20 D17

p – channel Depletion MOSFET

F1 Shubham Madhu 14.08.20 D18

n – Channel Enhancement MOSFET

F1 Shubham Madhu 14.08.20 D19

p – channel Enhancement MOSFET

F1 Shubham Madhu 14.08.20  D20

NOTE: The difference between Depletion and Enhancement MOSFET is the formation of the channel.

In Depletion MOSFET channel is initially formed whereas in Enhancement MOSFET it is not. So channel in Enhancement MOSFET is represented by the dotted symbol.

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