Physics MCQs: Most Important Questions for Exams

McqsTestz.com has uploaded a comprehensive collection of Physics MCQs covering a wide range of topics including mechanics, thermodynamics, electromagnetism, optics, modern physics, waves, fluids, and more. Perfect for students preparing for exams such as matriculation, intermediate, competitive tests, Lecturer and university-level assessments.

Physics MCQs

Electrical energy is measured in___________________?

A. watt

B. horse power

C. kilo watt

D. kilowatt hour

The resistance of a conductor at absolute zero (OK) is________________?

A. zero almost

B. infinite almost

C. no prediction at all

D. may increase or decrease

The graphical representation of Ohms law is___________________?

A. hyperbola

B. ellipse

C. parabola

D. straight line

In liquids and gases the current is due to the motion________________?

A. negative charges

B. positive charges

C. both negative and positive charges

D. neutral particles

An electric iron is marked 20 volts 500W. The units consumed by it in using if for 24 hours will be______________?

A. 12

B. 24

C. 5

D. 1100

Resistance of a wire on increasing its temperature will_________________?

A. increase with rise in temperature

B. decrease with rise in temperature

C. will remain same

D. depends upon altitude of experimentation

Three bulbs are rating 40W 60W and 100W designed to work on 220V mains. Which bulb will burn most brightly if they are connected in series across 220 V mains ?

A. 40 W bulb

B. 60 W blub

C. 100 W blub

D. all will burn equally brightly

Internal resistance is the resistance offered by________________?

A. source of EMF

B. conductor

C. resistor

D. capacitor

Which one is the best material for making connecting wires ?

A. iron

B. tungsten

C. silver

D. copper

Resistance of a super conductor is ______________________?

A. finite

B. infinite

C. zero

D. changes with every conductor

MCQs (Category wise)

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