1000+ Analog Electronics Objective Questions and Answers Pdf - 3

Question: 11

By increasing the number of identical stages in an amplifier, the gain bandwidth product

(A) increases

(B) decreases

(C) becomes unity

(D) remains constant

Question: 12

What is the purpose of impedance matching between the output of previous stage and input of next stage in a cascaded amplifier?

(A) to achieve reduced noise

(B) to achieve reduced distortion

(C) to achieve high efficiency

(D) to achieve maximum power transfer

Question: 13

Negative feedback in an amplifier

(A) increases noise

(B) increases frequency and phase distortions

(C) reduces gain

(D) reduces bandwidth

Question: 14

A Hartley oscillator is used for generation of

(A) audio frequency oscillation

(B) microwave oscillation

(C) very low frequency oscillation

(D) radio frequency oscillation

Question: 15

Operating point shift can occur in an amplifier due to which one of the following?

(A) power supply fluctuation

(B) parasitic capacitances

(C) noise at the input

(D) input frequencies variation