Question # 1

The current which does not change its direction is called:

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A.C

D.C

Conventional

Transient current

The two inputs of a NAND gate are A and B. Its output would be zero when:

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A = 0, B = 0

A = 1, B= 0

A = 1 , B = 1

A = 0 , B = 1

When a positive charge of 2 coulombs is placed at a point in an electric field, it experiences a force of 6N. The intensity of electric field at this point is:

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6 NC^-1

3 NC^-1

12 NC^-1

1.5 NC^-1

The phenomena used in capacitor is:

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electrostatic induction

induced current

electric field

electroscope

The current used in houses is:

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A.C.

Conventiona current

Current

D.C

One joule per coulomb is called:

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Volt

Farad

Ampere

Tesla

In computer terminology information means:

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Any data

Raw data

Processed data

Large data

Big unit of capacitance is:

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Farad

Volt

Watt

Coulomb

The sound waves are the example of:

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Longitudinal waves

Transverse waves

Electromagnetic waves

x-rays

If a ray of light in 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

The process by which electrons are emitted by a hot metal surface is

known as:

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Boiling

Evaportion

Conduction

Thermionic emission

It is used in satellite communication:

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Radio waves

Micro waves

Light waves

Electrical waves

Power of hair dryer is:

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1000 W

750 W

10 W

75 W

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