Question # 1

Five joules of work is needed to shift 10 C of charge from one place to another. The potential difference between the places is:

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0.5 V

2 V

5 V

10 V

The S.I unit of electric potential is:

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Watt

Joule

Coulomb

Volt

The speed of sound in air at 21 °C is:

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336ms^-1

343ms^-1

430ms^-1

470ms^-1

Electric field lines of force were first introduced by:

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Ampere

Farady

Fleming

Coulomb

Frequency of tuning fork depends upon its …………. of prongs:

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Weight

Speed

Mass

Distance

The intensity level of train siren is:

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150 dB

100 dB

130 dB

120 dB

Level of noise recommended in eight, hour work day:

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80-90 dB

80-85- dB

85-90 dB

90-95 dB

Volt is named after the Italian physicist:

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Faraday

Alessandro volta

Newton

Coulomb

An object gains excess negative charge after being rubbed against another object, which is:

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Neutral

Negatively charged

Charged

Either, a,b,and c

The SI the unit of charge is:

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Jpi;e

Volt

Coulomb

Watt

The unit of intensity of sound:

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Wm^-1

Wm^-2

Wm

Wm²

Which device is used to store charge:

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Resister

Capacitor

Dielectric

Fuse

SI unit of electric intensity is:

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NC

NC^-1

NC^-2

NC^-3

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Physics 10th Class English Medium Unit 4 Online Test MCQs With Answers

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