Question # 1

Capacitors are mainly used for radio frequency tuning:

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Paper capacitor

Air capacitor

Mica capacitor

Electrolytic capacitor

The data stored in C.D. is.

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680 MB

650 MB

700 MB

750 MB

Which is the unit of energy:

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KWh

Electron volt

Joule

All of above

A paper capacitor is usually available in the form of:

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Tubes

Rolled foil

Disc

Plates

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

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Hardware

Micro processor

Memory

Software

What does the term e-mail stand for?

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Emergency mail

Electronic mail

extra mail

external mail

The electric potential energy per unit charge is called:

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Electric field

Electric potential

Electric intensity

All of above

The device which is used to convert sound waves into electrical signal is called:

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Ear piece

Microphone

Transmission channel

Receiver

A data storage device is.

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Printer

Hard disk

Monitor

CPU

study of charges at rest is called:

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acoustics

electrostatics

electronics

electricity

Which waves of the following has highest frequency?

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Radio waves

Micro waves

Light wave

Sound wave

What is the voltage across a 6 Ω resistor when 3 A of current passes through it:

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2 V

9V

18 V

36 V

The filament of an electric bulb is made of:

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Nickel

Aluminium

Tungsten

Carbon

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