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Compare JFET with MOSFET.

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1 Answer

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Particulars
JFET
MOSFET
1) Type
Voltage controlled device
Voltage controlled device
2) Mode of operation
Operates only in depletion mode
Operates in depletion and enhancement mode
3) Input impedance
Higher
Higher than JFET 
4) Characteristic curve
More flat
Less flat than FET
5) Gate to source junction
Only reverse bias
Forward or reverse bias
6) Gate connection
Not isolated from substrate
Isolated by SiO2 layer from substrate

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