Question # 1

If we double the distance between two charges, then force becomes

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4-times

1/4th

Double

Half

The SI the unit of charge is:

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Jpi;e

Volt

Coulomb

Watt

The speed of sound in air at 0°C is:

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331ms^-1

376ms^-1

231ms^-1

386ms^-1

In case of OR and AND operation, if switches s₁ and s₂ both are open then lamp is:

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On

Off

Sometimes on and sometimes off

Neither on nor off

Mathematical formula of capacitance of a capacitor is:

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C = QV

C = Q/V

C = V/Q

C = V2/Q

Which device is used to store charge:

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Resister

Capacitor

Dielectric

Fuse

Unlike charges always:

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Repel each other

Attract each other

Sometimes repel and attract each other

Both A and B

The brain of any computer system is:

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Monitor

Memory

CPU

Control unit

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

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Weight

Speed

Mass

Distance

The intensity level of whispering is:

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20 dB

30 dB

40 dB

50 dB

Coulomb's law is mathematically stated as:

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F = k q1 q2/r3

F = k q2 q2 / r2

F = k q1 q2 / r

F = k q1 q2 / r2

Electric intensity is a quantity.

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Scalar

Vector

Base

None of these

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

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

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