Question # 1

SI unit of electric potential is:

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Watt

Volt

Coulomb

Joule

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

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0.024F

0.12F

0.6F

0.8F

Number of poles in a magnet is:

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One

Two

Three

Unlimited

the distance between two consecutive trough or crest is called:

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wavelength

frequency

time period

amplitude

Changing magnetic field in a closed circuit can induce:

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e.m.f

Electric current

Force

Both A and B

If a ray of light is glass is incident on an air surface at an angle greater than the critical angle, the ray will.

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refract only

reflect only

partially refract and partially reflect

Diffract only

A thermistor is a dependent resistors:

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Heat

temperature

energy

mass

CD which is made of soft material is called:

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Hard disk

Floppy disk

Iron disk

Copper disk

Which form of energy is sound:

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Electrical

mechanical

Thermal

Chemical

It mean position kinetic energy of the ball is:

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Minimum

Zero

Maximum

None of these

The combined resistance of two identical resistors, connected in series is 8Ω. Their combined resistance in a parallel arrangement will be:

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2 Ω

4 Ω

8 Ω

12 Ω

When we heat the metal at high temperature they emit:

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Holes

Protons

Neutrons

Electrons

Mathematical formula of capacitance of a capacitor is:

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C = QV

C = Q/V

C = V/Q

C = V2/Q

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