Contact
About
Reviews
Glossary
Insights
Port Places
OH&S
Terms of Trade
0416 501 728Induction is the process of generating an electric current or magnetic field without direct contact, usually through the influence of a changing magnetic field. This concept is fundamental in electromagnetism and underpins many technologies, from electric motors to transformers.
When a conductor, such as a wire, is exposed to a changing magnetic field, an electric current is produced in the conductor. This is called electromagnetic induction. The key principle behind this is Faraday’s Law of Induction, which states that a changing magnetic field creates a voltage, or electromotive force (EMF), in a conductor.
Induction works through two main phenomena:
- Electromagnetic Induction: When a magnetic field around a conductor changes, it creates an electric current in the conductor. For example, in a generator, a coil of wire spins within a magnetic field, and this motion generates electricity.
- Inductive Coupling: This occurs when energy is transferred between two nearby coils of wire through their magnetic fields, without physical connection. This is how wireless chargers power devices.
Everyday Examples of Induction:
- Electric Motors: Use induction to convert electricity into mechanical motion.
- Transformers: Rely on induction to transfer electrical energy between circuits and adjust voltage levels.
- Induction Cooktops: Generate heat in pots and pans using magnetic fields.
Induction is significant because it enables the efficient transfer of energy and power over distances without direct contact, forming the basis of modern electrical systems.
Get magnetised with Port Sparky today!
