Data Structure
Networking
RDBMS
Operating System
Java
MS Excel
iOS
HTML
CSS
Android
Python
C Programming
C++
C#
MongoDB
MySQL
Javascript
PHP
Physics
Chemistry
Biology
Mathematics
English
Economics
Psychology
Social Studies
Fashion Studies
Legal Studies
- Selected Reading
- UPSC IAS Exams Notes
- Developer's Best Practices
- Questions and Answers
- Effective Resume Writing
- HR Interview Questions
- Computer Glossary
- Who is Who
Is electricity made by positive and negative poles?
Electricity is not made by positive and negative poles or terminals, rather like everything else, it is made up of atoms which contain charged particles electron (negative charge), proton (positive charge) and neutron(neutral). The charge is measured in coulombs.
When electrons (charged particles) present in an atom move from one atom to another, then this flow of charged particles called is called as current, which is measured in amperes (I).
In simple terms, the static particle has charge and the movement of charges is known as the current.
But without potential difference, (the positive and negative terminal or poles), the flow of current or charge can't take place because we know that an electric current flows between two points due to the potential difference between them. Thus, as long as the potential difference is maintained between the two points, the electric current keeps flowing continuously.
When the two charged bodies at different potential are connected by a metal wire, it is found that the flow of charge takes place from the body at higher potential to another body at a lower potential.
This flow of electric charges in a conductor (metal wire) is called electric current.
The poles or terminals with relatively more electrons is said to have negative polarity, the other is assigned positive polarity.
The difference measured between the two potentials is called potential difference or voltage.
124 Views
