Question # 1

An object gains excess negative charge after being rubbed against another object, which is:

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Neutral

Negatively charged

Charged

Either, a,b,and c

As the temperature of a conductor rises, its resistance.

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Increase

Decrease

Does not change

None of these

Electric motor converts electrical energy into:

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Chemical energy

Solar energy

Heat energy

Mechanical energy

1 GB = ______________ Megabytes.

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1022

1023

1024

1025

From which of the following we can get information almost about everything:

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Book

Teacher

Computer

Internet

Wave transfer

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Energy

Frequency

Wavelength

Velocity

The unit of electric power is:

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Volt

Watt

Joule

Coulomb

Which of the following tasks are performed by most of the algorithms?

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Input

Out put

Processing

All of these

Magnetic effect of electric current was first discovered by:

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Faraday

Ampere

Volta

Lenz

Mathematical form of Ohm's law is:

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V = IR

V = I2R

V = Qt

V = IR2

Hard disk is made of:

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Aluminium

Copper

Iron

Plastic

The waves in which particles of the medium vibrate parallel to the direction of waves are called:

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Longitudinal waves

Transverse waves

Electromagnetic waves

Both a and c

The presence of a magnetic field can be detected by a

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small mass

Stationary positive charge

Stationary negative charge

Magnetic compass

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