1000+ Analog Electronics Objective Questions and Answers Pdf - 2

Question: 6

Doping materials are called impurities because they

(A) change the chemical properties of semiconductors

(B) decrease the number of charge carries

(C) alter the crystal structures of the pure semiconductors

(D) make semiconductors less than 100 percent pure

Question: 7

A properly biased JFET will act as a

(A) current controlled voltage source

(B) voltage controlled current source

(C) voltage controlled voltage source

(D) current controlled current source

Question: 8

At large forward biases, tunnel diodes conduct due to

(A) tunneling of carriers across the forbidden energy gap

(B) displacement current of the diffusion capacitance

(C) the diffusion of carries across the forbidden energy gap

(D) avalanche multiplication in the space charge layer

Question: 9

An electron in the conduction band

(A) is bound to its parent atom

(B) has a high energy than an electron in the valence band

(C) has no charge

(D) is located near the top of the crystal

Question: 10

In a zener diode large reverse current is due to

(A) lower resistance in reverse biased region

(B) collision

(C) rupture of bonds

(D) presence of impurity