Diagram
Common electrostatic phenomenon
Lightning
Diagram
Simple Electrostatic Phenomenon From Our Daily Life
The attraction of plastic wrap to our hand after we remove it from a package.
Diagram
Simple Electrostatic Phenomenon From Our Daily Life
Charging of a plastic comb after combing.
Law
Laws of electrostatic attraction and repulsion
According to the laws of electrostatic attraction and repulsion:
- Two like charges repel each other.
- Two, unlike charges, attract each other.
Example
Examples of conductors and insulators
Examples of conductors are metals(silver, copper and aluminium, etc), mercury, earth, etc.
Examples of insulators are non-metals (plastic, glass, pure water, sulphur, etc). Some exceptions that are non-metals but not insulators are graphite and tap water.
Examples of insulators are non-metals (plastic, glass, pure water, sulphur, etc). Some exceptions that are non-metals but not insulators are graphite and tap water.
Definition
Earthing and its advantages
Connecting a charged object to the earth with the help of conducting wires or physical contact is called Earthing. The earth is considered to be a huge reservoir of electrons. Depending upon the charge on the object, the earth provides or accepts electrons from a charged object connected to it.
Definition
Types of charged bodies
Charged bodies either have excess or lack of electrons.
When a body has excess electrons, it becomes negatively charged.
When a body has lack of electrons, it becomes positively charged.
When a body has excess electrons, it becomes negatively charged.
When a body has lack of electrons, it becomes positively charged.
Definition
Interaction of Charges
Charge is a fundamental property of matter. It is of two kinds: positive and negative. The smallest charge is that of an electron. It is negative and its value is . In a material, only electrons are free to move.
Interaction of charges is explained as:
1. Like charges repel.
2. Unlike charges attract.
Interaction of charges is explained as:
1. Like charges repel.
2. Unlike charges attract.
Definition
Introduction to Charged and Uncharged Bodies
Charged Body :
A body which possess charge is called charged body. But this charge may be either positive or negative.
Depending upon the nature of charge, a charged body may be classified as follow :
A body which is electrically neutral is called as an uncharged body. They have equal negative and positive charge. As a result, they remain neutral.
A body which possess charge is called charged body. But this charge may be either positive or negative.
Depending upon the nature of charge, a charged body may be classified as follow :
- Positively Charged Body : A body with more number of proton is known as positively charged body.
- Negatively Charged Body : A body with more number of electrons is known as negatively charged body
A body which is electrically neutral is called as an uncharged body. They have equal negative and positive charge. As a result, they remain neutral.
Definition
Discharging
When a charged body comes into contact with a body which is not charged, the electric charges jump from the charged body to the uncharged body till the charges on both the bodies become equal. This process is called discharging.
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