Analog, Digital Electronics Questions and Answers - 3

Question: 11

The Miller effect in the context of a Common Emitter amplifier explains

(A) a decrease in the high frequency cutoff frequency

(B) a decrease in the low frequency cutoff frequency

(C) an increase in the high frequency cutoff frequency

(D) an increase in the low frequency cutoff frequency

Question: 12

For tuned radio-frequency we use

(A) class A amplifier

(B) class B amplifier

(C) class C amplifier

(D) class AB amplifier

Question: 13

The amplifier gain varies with frequency. This happens mainly due to

(A) presence of external and internal capacitances

(B) interstage transformers

(C) logarithmic increase in its output power

(D) miller effect

Question: 14

The multivibrator circuit which possess one stable state and one quasi-stable state is

(A) astable

(B) monostable

(C) bistable

(D) schmitt trigger circuit

Question: 15

Thermal noise in a transistor amplifier is also known as

(A) johnson noise

(B) black noise

(C) shot noise

(D) schottky noise