ANALOG ELECTRONICS QUIZ

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

4.

1.5.

2.

3.

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Base of a number system is also known as

shift

value

radix

count

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A 741 C has

an output impedance of 75 ÃŽÂ©.

an input impedance of 2 MÃŽÂ©.

a voltage gain of 100,000.

All of these

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For a JEFT, when VDS is increased beyond the pinch-off voltage, the drain electric current

decreases.

first increase and then decreased.

remains constant.

increased.

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If the base current is 100 mA and the current gain is 30, the emitter current is

10 A.

3.1 A.

3 A.

3.33 mA.

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An opamp has a voltage gain of 200,000. If the output voltage is 1 V, the input voltage is

1 V.

10 V.

5 5 micro V.

2 micro V.

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Which are the mobile charge carriers present in semiconductor diode ?

Electrons

Neutrons

Both A & B

Holes

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In a CB amplifier the maximum efficiency could be

25%

85%

50%

99%

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In a zener diode shunt voltage regulator, the diode regulates so long as it is kept in ______________________ condition.

unloaded.

loaded.

forward.

reverse.

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If the collector resistor is open, the collector voltage is

unchanged.

low.

high.

unknown.

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