Question # 1

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

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Resistance

Specific resistance

Resistor

Resistivity

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

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Steel

Carbon

Copper

Iron

The closed switch in Boolean expression is represented by:

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0

1

10

2

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

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v

1

0

λ

an additional wire used along with live and neutral wire is:

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cable wire

earth wire

grip wire

hot wire

Bets can hear sound of frequency up to:

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100,000 Hz

25000 Hz

120,000 Hz

1000 Hz

The minimum value of angle of deviation is called:

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Minimum angle

Incident angle

Angle of minimum deviation

None of these

The speed of sound in air at 0°C is:

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331ms^-1

376ms^-1

231ms^-1

386ms^-1

An object is placed 6 cm away in front of a concave mirror that has 10 cm focal length. Determine the location of the image:

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-5 cm

-10 cm

-15 cm

-20 cm

When you rub a plastic rod against your hair several times and put it near some bits of paper, the pieces of papers are attracted towards it. What does this observation indicate:

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The rod and the paper are oppositely charged

The rod acquires a positive charge

The rod and the paper have the same charges

The rod acquires a negative charge

Which is the unit of energy:

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KWh

Electron volt

Joule

All of above

Waves transfer:

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Energy

Wavelength

Velocity

frequency

A current carrying conductor produces a field around it is called:

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Electric field

Magnetic field

Both a and b

None of these

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