ANALOG ELECTRONICS QUIZ

The input offset electric current equals the

collector electric current divided by the base current.

difference between the two base currents.

average of the two base currents.

difference between the two base-emitter voltages.

TRUE ANSWER : ?
YOUR ANSWER : ?

If the current gain is 100 and the collector current is 10 mA, the base current is

100 µA.

10 µA.

1 A.

10 A.

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

1

0.25

0.5

0.75

TRUE ANSWER : ?
YOUR ANSWER : ?

Doping in a semiconductor increases which quantity

Resistance

Inductance

None

Conductance

TRUE ANSWER : ?
YOUR ANSWER : ?

The opamp can amplify

DC signals only.

neither AC not DC signals.

both AC and DC signals.

AC signals only.

TRUE ANSWER : ?
YOUR ANSWER : ?

When a junction diode is Reverse Biased then diode acts like .......................

An open switch

Close switch

Short switch

None of these

TRUE ANSWER : ?
YOUR ANSWER : ?

For emitter bias, the voltage at the emitter is 0.7 V less than the

emitter voltage.

base voltage.

collector voltage.

ground voltage.

TRUE ANSWER : ?
YOUR ANSWER : ?

Darlington connection is achieved in 2 transistors by connecting

both collector.

both emitter.

grounding both collector.

both base.

TRUE ANSWER : ?
YOUR ANSWER : ?

A 741-type OP-amp has a gain-bandwidth product of 1MHz.A non-inverting amplifier using this opamp & having a voltage gain of 20db will exhibit -3db bandwidth of

50 KHz

1000/7.07 KHz

100 KHz

1000/17 KHz

TRUE ANSWER : ?
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In a MOSFET, the polarity of the inversion layer is the same as that of the

minority carriers in the drain .

charge on the gate electrode.

majority carries in the substrate.

majority carries in the source .

TRUE ANSWER : ?
YOUR ANSWER : ?

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