Difference of JFET and MOSFET

Question 1

stands for Junction Field Effect Transistor.

Answer 1

JFET

Question 2

stands for Metal Oxide Semiconductor Field Effect Transistor

Answer 2

MOSFET

Question 3

operates only in depletion mode.

Answer 3

JFET

Question 4

can be operated in both enhancement mode and depletion mode.

Answer 4

MOSFET

Question 5

is a three terminal device, where the terminals are named –Source (S), Drain (D) and Gate (G).

Answer 5

JFET

Question 6

is also a four terminaldevice, where the terminals are –Source (S), Drain (D), Gate (G) and Body or Substrate (B).

Answer 6

MOSFET

Question 7

has a continuous channel. The channel exists permanently.

Answer 7

JFET

Question 8

has a continuous channel only in the depletion type, but not in the enhancement type. Thus, the channel exists permanently in depletion type, but not in enhancement type.

Answer 8

MOSFET

Question 9

has a gate terminal which is not insulated from the channel.

Answer 9

JFET

Question 10

The gate terminal of the _______ is insulated from thin layer of metal-oxide.

Answer 10

MOSFET

Question 11

has a high input impedance which is of the order of 109Ω.

Answer 11

JFET

Question 12

has very high input impedance of the order of 1014ΩΩ.

Answer 12

MOSFET

Question 13

is less susceptible to damage as it has high input capacitance.

Answer 13

JFET

Question 14

is more susceptible to damage because the presence of metal oxide reduces input capacitance.

Answer 14

MOSFET

Question 15

The manufacturing process of ____ is simple and less sophisticated.

Answer 15

JFET

Question 16

Manufacturing of ______ is complex.

Answer 16

MOSFET

Question 17

drain resistance of ____ is high and ranges from 105 Ω to 106 Ω.

Answer 17

JFET

Question 18

drain resistance of ____ is low of the order of 1 Ω to 50 Ω.

Answer 18

MOSFET

Question 19

The addition of metal oxide increases the manufacturing cost of ____

Answer 19

MOSFET

Question 20

In ____, the Gate terminal is isolated from the channel, and the voltage applied to the Gate terminal controls the current flow, which creates an electric field across the oxide layer.

Answer 20

MOSFET

Question 21

In ____, the Gate terminal is connected directly to the channel, and the voltage applied to the Gate terminal controls the current flow.

Answer 21

JFET

Question 22

has more flat characteristics curve.

Answer 22

JFET

Question 23

has relatively less flat characteristics curve.

Answer 23

MOSFET

Question 24

In ____, the conductivity of the device is controlled by the reverse biasing of the gate.

Answer 24

JFET

Question 25

In ____, the conductivity is controlled by the charge carriers induced in the channel.

Answer 25

MOSFET

Question 26

The signal capacity of the ____ is less.

Answer 26

JFET

Question 27

____ has more signal handling capacity

Answer 27

MOSFET

Question 28

It is also called an Insulated Gate Field Effect Transistor (IGFET).

Answer 28

MOSFET

Question 29

It is used for switching or amplifying electronic signals in electronic devices.

Answer 29

MOSFET

Question 30

It is the most commonly used transistor and it can be used in both analog and digital circuits.

Answer 30

MOSFET