SOME NATURAL PHENOMENA

The process of transfer of charges from a charged

object to the earth is called?

• earthing.

• lightning.

• oscillation motion.

• electron movement.

The power of an earthquake is expressed on a scale called

• seismic scale

• iron scale

• richter scale

• large scale

Which is not a natural phenomena?

• ) Earthquakes

• Cyclones

• Lightning

• Earthing

How many types of charges are gained by rubbing objects?

• 2

• 3

• 1

• 4

Which of the following can be charged with static electricity ?

• Metal

• Insulator

• Semiconducto

• Alloy

Which of the following can be charged by rubbing?

• Ebonite

• Plastic

• All of these

• Amber

When two bodies are rubbed against each other, they acquire

• equal and like charges

• equal and unlike charges

• unequal and like charges

• unequal and unlike charges

A device used to test whether an object is carrying charge or not is called ______

•  Electrometer

•  Charge meter

•   Electroscope

•  Chargoscope

During lightning actually _____________ takes place

•  Electric discharge

•  Electric charging

•  Electric charge accumulation

•  All of the above

To protect tall buildings from the damage of lightning, what can be done?

• Not to build tall buildings

• Install lightning conductors

• Install many TV antennas

• Have a roof top garden with tall trees