Question # 1

A dry battery can deliver 3,000 J energy to a small 2 W electric motor before the battery is exhausted for how minutes does the motor run.

Choose an answer

20 minutes

25 minutes

75 minutes

125 minutes

If we make the magnetic field stronger the value of induced emf is.

Choose an answer

Decreased

Increased

Vanished

Kept constant

The current passing through the switch s will be

Choose an answer

Zero

3 A

4.5 A

10 A

In which form energy in an inductance coil is stored.

Choose an answer

Heat energy

Light energy

Magnetic energy

Nuclear energy

When X_c = X_l, this condition is called.

Choose an answer

Equality

Balanced

Resonance

Equlibrium

Thermocouple is used for

Choose an answer

Converting atomic energy into heat energy

Measure the radiant energy

Storing the heat energy

Measuring current

Which electrical component uses a low current circuit to switch a high current ON or OFF.

Choose an answer

Capacitor

Diode

Reed rely

Thermistor

What does a dynamo generate

Choose an answer

Electrons

Emf

anion

Cation

The electric supply line in houses works at 220 V what will be the amplitude of emf.

Choose an answer

120 V

331 V

220 V

440 V

The advantage of LEDs over filament lamp is their

Choose an answer

Small size

Reliability

High operating speed

All of the above

The current passing across a p-n junction due to minority charge carriers is called

Choose an answer

Reverse current

Forward current

Leakage current

Both a and b

What is the power factors of wattles current.

Choose an answer

Infinity

Unity

0.5

Zero

The sensitivity of the galvanometer can be increased by increasing the

Choose an answer

Number of turns of the coil

Area of the coil

Strength of the magnetic field

All of the above

A pure capacitor is connected in an AC circuit The power factor of the circuit will be.

Choose an answer

Unity

Infinity

0.5

Zero

Inductance are measured in

Choose an answer

Coulombs

Volts

Henrys

Farads

What happens to the intensity or the brightness of the lamps connected in series as more and more lamps are added.

Choose an answer

Increases

Decreases

Remains the same

Cannot be predicted

The distribution of electrical charge i an object caused by teh influence of nearby charges is called.

Choose an answer

Electric potential

Electrostatic induction

Electric flux

Electric dipole moment

Which of these is not a method of charging.

Choose an answer

Friction or rubbing

Induction

Contact or touching

Convection

An ideal voltage source has zero.

Choose an answer

Current

Electromotive force

Voltage

Internal resistance

Which law states that magnetization is inversely proportional to temperature for a fixed value fo the field.

Choose an answer

Curie's law

Voltmeter

Ammeter

Wattmeter

The process of mixing sound waves with carrier waves is known as.

Choose an answer

Rectification

amplification

Modulation

Demodulation

More Classes

Other Links

PPSC Physics Chapter 6 Electricity and Magnetism MCQs With Answers

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer