The input control parameter of a JFET is ___________

A JFET has high input impedance because ___________

A

it is made of semiconductor material

B

input is reverse biased

C

of impurity atoms

D

none of the above

The input impedance of a JFET is ___________ that of an ordinary transistor

A

equal to

B

less than

C

more than

D

none of the above

In class A operation, the input circuit of a JFET is ___________ biased

A

forward

B

reverse

C

not

D

none of the above

একটি JFET-এর IDSS = 10V, VGS = 10V হলে Input resistance কত?

A

10 mΩ

B

100 mΩ

C

1000 mΩ

D

10 ΜΩ

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

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

The output characteristics of a JFET closely resemble the output characteristics of a ___________ valve

A

pentode

B

tetrode

C

triode

D

diode

A MOSFET differs from a JFET mainly because ___________

A

of power rating

B

the MOSFET has two gates

C

the JFET has a pn junction

D

none of the above

If the reverse bias on the gate of a JFET is increased, then width of the conducting channel ___________

A

is decreased

B

is increased

C

remains the same

D

none of the above

If the gate of a JFET is made less negative, the width of the conducting channel ___________

A

remains the same

B

is decreased

C

is increased

D

none of the above

The input control parameter of a JFET is ___________

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