1000+ TNPSC Group 2 GK Questions and Answers - 2

Question: 6

An instrument to measure electrical power consumed is

(A) Ammeter

(B) Voltmeter

(C) Galvanometer

(D) Watt meter

Question: 7

Free electrons are always in

(A) Vibrational motion

(B) Rotational motion

(C) Linear motion

(D) Random motion

Question: 8

The tolerance or percentage of reliability of the resistor is indicated by the

(A) Silver or gold ring

(B) Grey or white ring

(C) Yellow or blue ring

(D) Brown or red ring

Question: 9

In the case of insulators, as the temperature decreases, resistivity

(A) Increases

(B) Decreases

(C) Remains constant

(D) Becomes zero

Question: 10

Thermopile works on the principle of

(A) Thomson effect

(B) Peltier effect

(C) See beck effected

(D) Joule effect