ANALOG ELECTRONICS QUIZ

The ideal value of stability factor of a biasing circuit is

1.

5.

10.

100.

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When a junction diode is Forward Biased the thickness of the depletion region is................

Not determine

Smaller

Larger

Medium

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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

0.75

0.5

1

0.25

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Which of the following statements is false?

All of these

Push pull signals are equal and opposite in phase

Class AB operation cannot be used for a push pull audio power output phase

A push pull output transformer has a centre-tapped primary

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The collector - emitter voltage is usually

more than the collector supply voltage.

equal to the collector supply voltage.

none of these.

less than the collector supply voltage.

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The input impedance of the base of an emitter follower is usually

shorted to ground.

high.

low.

open.

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The forbidden energy gap between valance band and conduction band in semiconductor material is about

15 eV

None of these

1eV

0 eV

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Piezoelectric effect is utilized in which of the following filter?

Ideal filter.

Band stop.

Crystal filter.

Pass band.

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If (211)X = (152)8, then the value of base x is

7

9

6

5

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In the active region, the collector current is not changed significantly by

collector resistance.

current gain.

base supply voltage.

base current.

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