C PROGRAMMING QUIZ

In CE configuration, the input V-I characteristics are drawn by taking

VCE versus IC for constant value of IE.

VBE versus IB for constant value of IC.

VBE versus IB for constant value of VCE.

VBE versus IE for constant value of VCE.

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The load voltage is approximately constant when a zener diode is

unbiased.

operating in breakdown region.

forward biased.

reverse biased.

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An instrumentation amplifier has a high

CMMR.

power gain.

supply voltage.

output impedance.

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Diode is also called as:

Amplifier

Resistance

Reactance

Rectifier

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Three identical amplifiers with each one having a voltage gain of 50,input resistance of 1KΩ & output resistance of 250, are cascaded. The open circuit voltage gain of combined amplifier is

51dB

49dB

98dB

102dB

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For a transistor amplifier with self- biasing network, the following components are used: R1 = 4 KÃŽÂ©, R2 = 4 KÃŽÂ© and RE = 1 KÃŽÂ©, the approximate value of stability factor will be

1.5.

2.

4.

3.

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A schottky device is a

Both B and C.

Minority carrier device.

Fast recovery device.

Majority carrier device.

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The following relationship between ÃŽÂ± and ÃŽÂ² are correct except

1 - ÃŽÂ± = 1 / (1 + ÃŽÂ²).

ÃŽÂ± = ÃŽÂ² / (1 + ÃŽÂ²).

ÃŽÂ² = ÃŽÂ± / (1 - ÃŽÂ±).

ÃŽÂ± = ÃŽÂ² / (1 - ÃŽÂ²).

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Which of the following is Pentavalent impurity?

indium

boron

antimony

gallium

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Common emitter current gain hFE of a BJT is

Dependent on collector-emitter voltage.

Always constant.

Dependent on base -emitter voltage.

Dependent on collector current.

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