WorksheetsField Effect Transistor
Total questions: 15
Worksheet time: 8mins
A Field Effect Transistor FET............
is a POWER operated device
is a VOLTAGE operated device
is a CURRENT operated device
If the reverse bias on the gate of a JFET is increased, then width of the conducting channel
remains the same
is increased
is decreased
The main types of field effect transistor are
BJT and FET
JFET and MOSFET
UJT and FET
How the JFET transistor works?
Base-emitter voltage causes media flow
Maximum voltages and currents of the electrodes
The ID is controlled by electric field between gate & conducting channel
What is the biasing at Gate-Source junction of JFET?
Forward biased
Reverse biased
What are the two basic types of junction field-effect transistors?
MOSFET and GaAsFET.
N-channel and P-channel.
Silicon FET and germanium FET.
High power and low power.
What is pinch off region?
The minimum voltage required to turn on the FET
The maximum voltage a FET can withstand
The drain current remains constant at its maximum
The three legs of a JFET are called the Gate, emitter, and source.
True
False
What will happen if gate voltage applied is forward bias voltage?
Device burns
More current flows
Nothing happens
For an n-channel FET, What is the direction of current flow?
Source to drain
Gate to source
Gate to drain
Drain to source
For a p-channel FET, What is the direction of current flow?
Source to drain
Gate to source
Drain to source
Gate to drain
When a JFET is pinched off, the depletion layers are
Conducting
Far apart
Almost close together
The charge carriers in an N-channel JFET are
Electrons
Protons
Neutrons
What happen when VDS keep increasing after reach pinch off region
ID decreasing rapidly
ID keeps in constant value
ID increasing rapidly
JFET is bipolar device
True
False
