BJT vs FET

FET » Exercise – 1

“What is the difference between bjt and fet ?
What is the full form of bjt ?
What is the full form of fet ?
You all must have this kind of questions in your mind. Below article will solve this puzzle of yours. Just take a look.” 

 BJT vs FET  – Here we are going to define difference between BJT and FET.

What is a BJT ?

1. BJT full form is “Bipolar Junction Transistor”.
2. BJT is the current controlled device.

What is a FET ?

1. FET full form is “Field Effect Transistor”.
2. FET is the voltage controlled device.

BJT vs FET

S. No. BJT FET
1. Current controlled device Voltage controlled device
2. High voltage gain Low voltage gain
3. Low current gain High current gain
4. Low input impedance Very high input impedance
5. Low output impedance High output impedance
6. Medium Noise Generation Low Noise generation
7. Medium switching time Fast switching time
8. Cheap More expensive than BJT

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