Question # 1

Information storage devices work on the principles of

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Heat

Sound

Light

Magnetism

The speed of sound in air is kmh^-1

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1243

1244

1245

1246

A dielectric must be:

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Resistor

Insulator

Good conductor

Semi conductor

1.6x10^-19 J= :

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1F

1N

1eV

Specific resistance of aluminium in (10^-8 Ω.m) is:

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1.7

2.75

5.25

1.69

Which of the following is not Processing?

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arranging

manipulation

calculating

gathering

What does the term e-mail stand for?

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Emergency mail

Electronic mail

extra mail

external mail

Which of the following reasons increase the importance of computer?

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Speedy

Long time storage of memory

Quick decision

All of these

Hard disk is made of:

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Aluminium

Copper

Iron

Plastic

The phenomena used in capacitor is:

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electrostatic induction

induced current

electric field

electroscope

A 3Ω resistor having 2A current will dissipate the power of:

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12W

4W

6W

8W

Radio waves are:

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Electric waves

Electromagnetic waves

X-rays

Radio active ways.

A group of instructions or a program which guides hardware to do work is called:

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Hardware

Micro processor

Memory

Software

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