ANALOG ELECTRONICS QUIZ

The AC base voltage of an emitter follower is across the

emitter diode.

emitter diode and external AC emitter resistance.

load resistor.

DC emitter resistor.

TRUE ANSWER : ?
YOUR ANSWER : ?

Ignoring the bulk resistance of the collector diode, the collector-emitter saturation voltage is

1 V.

supply voltage.

a few tenths of a volt.

0.

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following transistor configuration circuit is much less temperature dependent ?

None of these

Common emitter.

Common collector.

Common base.

TRUE ANSWER : ?
YOUR ANSWER : ?

In a CB amplifier the maximum efficiency could be

50%

85%

25%

99%

TRUE ANSWER : ?
YOUR ANSWER : ?

An n- channel JFET has IDSS=2mA,and Vp=-4v.Its transconductance gm=in mA/V)for an applied gate to source voltage VGS=-2v is

0.5

0.75

1

0.25

TRUE ANSWER : ?
YOUR ANSWER : ?

The first step in analyzing emitter-based circuits is to find the

base current.

emitter current.

collector current.

supply current.

TRUE ANSWER : ?
YOUR ANSWER : ?

If the series resistance increases in an unloaded zener regulator, the zener current

increases.

stays the same.

decreases.

equals the voltage divided by the resistance.

TRUE ANSWER : ?
YOUR ANSWER : ?

What is the charge of mobile charge carriers of holes ?

None of these

Negatively charged

No charged

Positively charged

TRUE ANSWER : ?
YOUR ANSWER : ?

The following are the necessary requirements of an oscillator

Amplitude stability

Frequency stability

Power stability

Both A and B

TRUE ANSWER : ?
YOUR ANSWER : ?

When the diode is forward biased, it is equivalent to

None of these

an on switch.

a high resistance.

an off switch.

TRUE ANSWER : ?
YOUR ANSWER : ?

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