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.Management Sciences
Category: Field Effect Transistors – FET
The input impedance of a MOSFET is of the order of______________?
0
A. O
B. a few hundred O
C. kO
D. several MO
A common base configuration of a pnp transistor is analogous to _____________?of a JFET
A. common source configuration
B. common drain configuration
C. common gate configuration
D. none of the above
n a common-source JFET amplifier, the output voltage is _____________?
A. 180o out of phase with the input
B. in phase with the input
C. 90o out of phase with the input
D. taken at the source
The gate voltage in a JFET at which drain current becomes zero is called ______________ voltage?
A. saturation
B. pinch-off
C. active
D. cut-off
At cut-off, the JFET channel is _____________?
A. at its widest point
B. completely closed by the depletion region
C. extremely narrow
D. reverse baised
A JFET has three terminals, namely________________?
A. cathode, anode, grid
B. emitter, base, collector
C. source, gate, drain
D. none of the above
The channel of a JFET is between the ________________?
A. gate and drain
B. drain and source
C. gate and source
D. input and output
The transconductance of a JFET ranges from ________________?
A. 100 to 500 mA/V
B. 500 to 1000 mA/V
C. 0.5 to 30 mA/V
D. above 1000 mA/V
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