Top 100+ Electronics Communication Quiz Questions with Answers - 2

Question: 6

An oscillator is nothing but an amplifier with

(A) Negative feedback

(B) No feedback

(C) Large gain

(D) Positive feedback

Question: 7

The unidirectional property of a pn-junction is useful for its use as a

(A) Transformer

(B) Amplifier

(C) Oscillator

(D) Rectifier

Question: 8

n-type of semiconductor is

(A) Neutral

(B) Negatively charged

(C) Positively charged

(D) None of these

Question: 9

The waves relevant to telecommunications are

(A) Ultraviolet

(B) Microwave

(C) Visible light

(D) Infrared

Question: 10

The electrical circuits used to get smooth dc output from a rectified circuit is called

(A) Amplifier

(B) Full wave rectifier

(C) Filter

(D) Oscillator