1,000+ Tamil Nadu General Knowledge Questions & Answers 2020-21 - 1

Question: 1

The direction in which the positive charges flow is the direction of conventional

(A) Current

(B) Power

(C) Charge

(D) Resistance

Question: 2

When current flows through the coils of wattmeter, the deflection of the pointer is directly proportional to ______

(A) Voltage

(B) Power

(C) Charge

(D) Potential

Question: 3

______ is defined as the rate of flow of charge across any cross-sectional area of a conductor.

(A) Electric power

(B) Electric resistance

(C) Electric current

(D) Electric potential

Question: 4

____ is a device to detect thermal radiation.

(A) Thermostat

(B) Thermopile

(C) Thermometer

(D) Barometer

Question: 5

An ideal voltmeter has

(A) Infinite resistance

(B) Resistance greater than G but less than infinity

(C) Finite resistance less than G but greater than zero

(D) Zero resistance