What is Charge in Physics and Electronics | Electric Charge
Learn What is Charge in Physics and Electronics.
Here we Learn What is Charge in Physics and Electronics.
What is Charge?
Electric Charge may be defined as the quantity of unbalanced electricity in a body (either positive or negative) and construed as an excess or deficiency of electrons.
It comes in two forms, positive (+) , and negative ( – ) .
Charge is conserved. This means that you cannot create or destroy it. It can just change its “Form”.
How is Electric Charge Generated?
In Physics and Chemistry, we all studied Structure of an Atom that has equal Number of Electrons, Protons and Neutrons. Electrons are Negatively Charged, Protons are Positively Charged and Neutrons are Neutrally Charged.
If by any means, some electrons from one atom of a body moves to another atom of another body then there is Deficiency of Electrons (Negatively Charged) in the Donor Atom and Excess of Protons (Positively Charged) in the Receiver Atom.
Thus the Donor Body becomes Negatively Charged (because of Excess Electrons) and the Receiver becomes Positively Charged (Because of Excess Protons). This is how Electric Charge is Generated.
Unit of Charge
The unit of charge is the Coulomb, C. The symbol is Q.
What is Electromagnetic Field?
An electric charge has an electric field, and if it is moving it also generates a magnetic field. In Physics, combination of the electric and magnetic field is called electromagnetic field.
Formula to Calculate Electromagnetic Field
The most simple formula to calculate Formula to Calculate Electromagnetic Field is:
E = F/Q; where
- E = Electric Field
- F = Force
- Q = Charge
Methods of Charging
Wireless charging technology that uses an electromagnetic field to transfer energy between two objects using electromagnetic induction to produce electricity across a magnetic field.
Charging technology in which both objects acquire the same type of charge. If a negative object is used for charging a neutral object, then both objects become negatively charged. If a positive object is used for charging a neutral object, then both objects become positively charged.
The process of electron (Negatively Charged) transfer as a result of two objects coming into contact with each other and then separating (Example: Static Electricity).
Static Electricity (Static Charge)
Static electricity is electrical charge at rest. This is mainly created by imbalance of electrons that stay on a specific surface, or in the environmental air. The imbalance of electrons causes an electrical field that is capable of influencing other objects at a distance.
Example: Lighting in the Clouds
Read more on: Static Electricity
- Electronics Definition
- Electronics Dictionary
- Ohm’s Law Definition, Formula, Example
- Rules of Electrical Circuit in Parallel and Series
- Electrical Wiring Symbols, Meanings and Drawings
- What is an Electronic Circuit?
- What is Voltage?
- What is Current?
- Power in Physics and Electricity
- Electronic Circuits for Beginners
- Types of Electric Current | AC (Alternate Current) | DC (Direct Current)
- Basic Electronic Components – Types, Functions, Symbols
- Electronics and Electricity Basics