Question # 1

According to ohm's law , current and potential difference are:

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Inversely proportional

Directly proportional

Equal

Non of the above

The energy of moving charges is called:

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Light energy

Heat energy

Chemical energy

Electrical energy

Russia launched its first artificial satellite into space in:

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October 25,1950

October 4, 1957

October 10, 1969

February 25, 1963

The ability to do work is called.

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Power

Force

Energy

All of them

Which of the following are electromagnetic waves:

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sound

water waves

Ultrasound

light

Production of electricity with help of high tides is called.

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Tidal power

Tharmal power

Wind power

Geothermal power

Who was the inventor of radio system.

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Grahm bell

F. Crick

Charles babbage

Marconi

The process of manufacturing food in pants;

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Respiration

Digestion

Fermentation

Photosynthesis

analogue signal is recorded on.

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Magnetic tape

Floppy disk

Hard Disk

C.D

The device used for turning a circuit ON or OFF is.

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Switch

Fuse

Circuit breaker

Earth wire

Sunlight is directly transformed to electricity with the help of:

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Solar cells

Diod

Rectifier

Transistor

Total production capacity of Karachi nuclear power plant:

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137 megawatt

173 megawatt

100 megawatt

110 megawatt

Prodcut of forces and distance is called.

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Work

Energy

Power

Heat

Themethod of production of electricity that does not produce pollution is.

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Hydroelectirc power

Thermal power

Nuclear power

Burning of biogas

----------------- rays are used to detect the flaws and crocks of metal parts.

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a -rays

gama rays

beta rays

None of these

Cause of air pollution is.

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Carbon Monoxide

Sulphur di oxide

Nitrogen oxide

All of them

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