What is a Charge?
To study about current we need to know about the fundamental quantity of electronics which is charge. Electric charge is the physical property of matter that causes it to experience a force when placed in an electromagnetic field. The fundamental unit of charge is Coulomb(C). Symbol: Q
It can be further divided into two types:
- Positive Charge: A positive charge occurs when an atom has more protons than electrons.
- Negative Charge: When an object has more electrons than protons is called a negative charge.
Electric Current Formula
Current constitutes the basis of almost every electronic application. We use the current to turn on almost every appliance. We want it to heat water in an electric kettle, We want it to turn on the heater, and we want electric current to charge our devices. So we see current forms a large part of our life. In this article, we try to study what is this current. Electric current is the flow of one coulomb of electricity per second.
We talk about the definition of current, the symbol used to represent current. We study about charges that constitute, and we study the origin of the current. Not only this but we also study how current flows through an example. We try to differentiate between AC and DC. The article ends by mentioning some advantages, disadvantages, and some real-life applications of current. Solved examples have been added for a better understanding of the concepts.
Table of Content
- What is Electric Current?
- Origin of Current
- Mathematical Derivation
- Types
- Generation of Current
- Properties
- Solved Examples
- Applications