Question # 1

an electrolytic capacitor is used to store large amounts of charge at:

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low voltage

high voltage

neutral

positive

Information storage devices work on the principles of

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Heat

Sound

Light

Magnetism

If there is divergence of leaves by touching a body with electroscope then the body is:

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Semi conductor

Neutral

charge body

Insulator

The substances which do not have free electrons are called:

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Insulators

Conductors

Semiconductors

None of these

Which waves of the following has highest frequency?

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Radio waves

Micro waves

Light wave

Sound wave

It is used in satellite communication:

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Radio waves

Micro waves

Light waves

Electrical waves

1 MB = ________________ Kilobytes

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1022

1023

1024

1025

A data storage device is.

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Printer

Hard disk

Monitor

CPU

Which is not an e.m.f source:

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Generator

Solar cell

Battery

Rheostat

Power of electric heater is:

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1500W

4750W

100W

50W

In computer terminology information means.

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any data

raw data

processed data

large data

The data stored in C.D. is.

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680 MB

650 MB

700 MB

750 MB

A capacitor stores 0.24 coulombs at 10 volts. It capacitance is:

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0.024F

0.12F

0.6F

0.8F

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