TNPSC Group 1, 2, 2a Mains Physics Questions and Answers - 3

Question: 11

Which one of the following is a conductor?

(A) Human body

(B) Glass

(C) Ebonite

(D) Mica

Question: 12

Which of the following have positive temperature coefficient of resistance?

(A) Metals

(B) Mica

(C) Glass

(D) All the above

Question: 13

Pick out the metal that exhibits zero Thomson effect.

(A) Cd

(B) Ni

(C) Pt

(D) Pb

Question: 14

All the magnetic phenomena is due to circulating electric current states ____

(A) Joule’s hypothesis

(B) Ampere’s hypothesis

(C) Coulomb’s hypothesis

(D) Wheatstone’s hypothesis

Question: 15

_____ is used as heating element.

(A) Brass

(B) Nichrome

(C) Manganin

(D) Constantan