Question # 1

If a neutral body is brought near to the electroscope its leaves:

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Diverge

Contract

Shut

Remain in normal position

The example of magnetic disk is:

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Compact disk

Floppy disk

Audio cassette

Video cassette

The output of a two input NOR gate is 1 when:

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A is 1 and B is 0

A is 0 and B IS 1

Both A and B are 0

Both A and B are 1

Hard disk is made of:

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Aluminium

Copper

Iron

Plastic

In mathematical form of Ohm's law, "R" is:

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Resistance

Specific resistance

Resistor

Resistivity

The current which does not change its direction is called:

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A.C

D.C

Conventional

Transient current

Circuit breaker works on the principle of:

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Electric current

Magnetism

Electromagnetism

Electrostatics

Public address system is the example of :

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Analogue electronics

Digital electonics

Binary system

None of these

To get a design on the computer screen by moving a pointer with the help of mouse is called:

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word processing

graphic designing

data managing

telecommunication

Electric current in conductors is due to the flow of:

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Positive ions

Negative ions

Positive charge

Free electrons

What is fitted in telephone receiver?

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Electromagnet

Diaphragm

Both a and b

None of these

The water waves after striking the hurdle will:

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Reflect

Refract

Diffract

All a , b, c

CD which is made of soft material is called:

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Hard disk

Floppy disk

Iron disk

Copper disk

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