ANALOG ELECTRONICS QUIZ

At the unity-gain frequency, the open-loop voltage gain is

1.

very large

zero.

AV(mid).

TRUE ANSWER : ?
YOUR ANSWER : ?

The voltage divider biasing circuit is used in amplifiers quite often because it

reduces the DC base electric current.

reduces the cost of the circuit.

limits the AC signal going to base.

makes the operating point almost independent of ÃŽÂ².

TRUE ANSWER : ?
YOUR ANSWER : ?

Which material behave like perfect insulators at low temperatures & conductor at higher temperature ?

GaAs

Ge

Si

All the above

TRUE ANSWER : ?
YOUR ANSWER : ?

Depending upon the switching recovery time and on state drop, the power diodes are types

General purpose, fast recovery.

General purpose, fast recovery and schottly.

None of these.

Fast recovery, Schottky.

TRUE ANSWER : ?
YOUR ANSWER : ?

In which mode of BJT operation are both junction forward biased

reverse active.

cut off.

saturation.

active.

TRUE ANSWER : ?
YOUR ANSWER : ?

The effective channel length of a MOSFET in a saturation decreases with increase in

Body voltage

Source voltage

Gate voltage

Drain voltage

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following cannot actually move?

Holes

Electrons

All the above

Ions

TRUE ANSWER : ?
YOUR ANSWER : ?

The depletion region with in a pn junction is reduced when the junction has :

zero bias.

all of these.

forward bias.

reverse bias.

TRUE ANSWER : ?
YOUR ANSWER : ?

The resistance of pn junction when it is forward biased in the order of

Mega Ohm

None of these

Kilo Ohm

Ohm

TRUE ANSWER : ?
YOUR ANSWER : ?

Relaxation Voltage controlled oscillators are used to generate

Both B and C

Sinusoidal wave

Sawtooth wave

Triangular wave

TRUE ANSWER : ?
YOUR ANSWER : ?

↑