ANALOG ELECTRONICS QUIZ

An Op-Amp comparator circuit employs

-ve feedback.

both B and C.

+ve feedback.

no feedback.

TRUE ANSWER : ?
YOUR ANSWER : ?

What is the condition if no external potential energy is applied to the PN junction then diode ?

Reversed biased

Zero Bias

None of these

Forward biased

TRUE ANSWER : ?
YOUR ANSWER : ?

When the diode is forward biased, it is equivalent to

an on switch.

an off switch.

a high resistance.

None of these

TRUE ANSWER : ?
YOUR ANSWER : ?

The effective channel length of a MOSFET in a saturation decreases with increase in

Gate voltage

Body voltage

Source voltage

Drain voltage

TRUE ANSWER : ?
YOUR ANSWER : ?

In a differential amplifier, the CMRR is limited mostly by the

CMRR of the opamp.

supply voltages .

gain - bandwidth product.

tolerance of the resistors.

TRUE ANSWER : ?
YOUR ANSWER : ?

LC oscillators are used for produce a waveform with frequency ranging from

1MHz to 100 GHz

100 KHz to 500 MHz

1 KHz to 1 MHz

1MHz to 500 MHz

TRUE ANSWER : ?
YOUR ANSWER : ?

For a reverse biased pn junction, the electric current through the junction increases abruptly at

breakdown voltage.

0 V.

7.2 eV.

0.2 eV.

TRUE ANSWER : ?
YOUR ANSWER : ?

In an OP-amp differentiator

The amplitude of output is proportional to rate of change of input

The amplitude of output is proportional to input

Output occurs when input is finite and constant

Polarity of input and output is the same

TRUE ANSWER : ?
YOUR ANSWER : ?

Acceptors impurities are of ________ material

p-type

Both A and B

n-type

solid

TRUE ANSWER : ?
YOUR ANSWER : ?

The AC base voltage of an emitter follower is across the

load resistor.

DC emitter resistor.

emitter diode and external AC emitter resistance.

emitter diode.

TRUE ANSWER : ?
YOUR ANSWER : ?

↑