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PPSC Physics Chapter 6 Electricity and Magnetism MCQs With Answers

Question # 1

Which of the following quantities is analogous to mass in electricty.

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Charge

Potential

Capacitance

Inductance

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Question # 2

Which law states that an induced current is always in such a direction as to oppose the motion or change causing it.

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Ampere's law

Gauss's law

Lenz's law

Kirchoff's law

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Question # 3

In a half wave rectifier the rms value of the A.C. component of the wave is.

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Less than D.C. value

Great her than D.C. value

Equal to D.C. value

Zero

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Question # 4

To measure the accurate value of potential difference across two points, the voltmeter should have.

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Zero resistance

small resistance

Large resistance

Infinite resitance

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Question # 5

Super conductor are used in

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Fast computer chips

Magnetic resonance imaging

Magnetic levitation trains

All of the above

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Question # 6

A radio tuning capacitor is.

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Cylindrical capacitor

Spherical capacitor

parallel plates capacitor

Cylindrical condenser

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Question # 7

The current passing through the coil of a galvanometer is directly proportional to

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Resistance

voltage

Angle of deflection

conductance

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Question # 8

The patch followed by charge in an electric field is.

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Circular

LInear

Parabolic

Zig zag

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Question # 9

The cause of ferromagnetism is.

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Orbital motion of elections

spin Motion of electrons

Permanent dipole memento

Spin angular momentum

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Question # 10

A bulb of 100 W is connected to a 160 V supply What will be the power consumed.

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25 W

30 W

50 W

64 W

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Question # 11

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

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Rectification

amplification

Modulation

Demodulation

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