Question # 1

The unit of (ρ) in formula R=ρ.L/a is______________.

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Ω

Ω-m

Ω-m²

Ω-m^-2

The ampere is a unit of:

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Energy

Potential differrence

Electric potential

Electric current

The characteristics of sound by which we can distinguish between two sounds of same loudness and pitch is called.

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Intensity

Quality

Loudness

Pitch

Specific resistance of silver = ________ x 10^-sOhm-meter

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5.25

2.75

1.69

1.62

Which gate is used for safety alarm:

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AND

NANAD

OR

NOR

Which instrument is used to detect current?

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Galvanometer

Voltmeter

Ammeter

Electroscope

What is the power rating of a lamp connected to a 12 v source when it carries 2.5 A?

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4.8 W

14.5 W

30 W

60 W

Which combination forms NAND gate:

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AND & OR

AND & NOT

NOT & OR

NAND & NOT

The distance between principal focus and pole of mirror is called:

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Principal focus

Focal length

Aperture

Image

Mathematical formula of electromotive force (e.m.f) is:

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E = W/Q

E = Q/W

E = WQ

E = W2Q

Electron gun has an electrode called for controlling the flow of electrons in the beam:

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Plate

Grid

Screen

Filament

The unit of resistance is:

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Ω-m

Ω

V

C

An electric current in conductors is due to the flow of:

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Positive ions

Negtive ions

Positive charge

free electron

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Physics 10th Class English Medium Unit 5 Online Test MCQs With Answers

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