Question # 1

Transformer which increase voltage is called.

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Step-up transformer

Step down transformer

D.C.Moter

A.C.genrator

Which of the following is an example of simple harmonic motion:

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Motion of a simple pendulum

The motion of ceiling fan

The spinning of the earth on its axis

A bouncing ball on a floor

The property of substance, which opposes the flow of current through it is called.

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Resistance

Reactance

Resistivity

None of these

Boolean expression for AND operation is:

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X = A̅

X = A + B

X = A . B

X = A̅B̅

Information storage device work on the principles of:

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Heat

Sound

Light

Magnetism

The waves in which particles of the medium vibrate perpendicular to the directions waves are:

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Electromagnetic waves

Sound waves

bothe a and b

Transverse waves

the unit of frequency is:

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hertz

vibration per second

cycle per second

all a, b and c

In D.C.motor split rings are made of:

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Steel

Carbon

Copper

Iron

Which combination forms NAND gate:

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AND & OR

AND & NOT

NOT & OR

NAND & NOT

1 MB =

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1022KB

1023KB

1024KB

1025KB

A conductor of electric current is:

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Wood

Rubber

Plastic

Copper

The time period of frequency and time period is equal to:

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v

1

0

λ

Battery converts chemical energy into which energy:

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Mechanical

Electrical

Thermal

None of these

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