1000+ Current Electricity Objective Questions and Answers Pdf - 2

Question: 6

Which of the following materials has a negative temperature co-efficient of resistance?

(A) aluminium

(B) brass

(C) copper

(D) carbon

Question: 7

Out of the following which is an insulating material?

(A) paper

(B) copper

(C) gold

(D) silver

Question: 8

The draft velocity of electrons is

(A) greater than speed of light

(B) almost equal to speed of light

(C) equal to speed of light

(D) very small as compared to speed of light

Question: 9

Which of the following material has nearly zero temperature co-efficient of resistance?

(A) copper

(B) carbon

(C) porcelain

(D) manganin

Question: 10

The resistance of human body is around

(A) 25 ohms

(B) 250 ohms

(C) 450 ohms

(D) 1000 ohms