Archive | Magnetism

Process of Magnetism (With Diagram) | Electrical Engineering

In this article we will discuss about:- 1. Introduction to Process of Magnetism 2. Production of EMF 3. Faraday's Laws of Electro-Magnetic Induction 4. Lenz's Law 5. Induced EMF 6. AC Excitation 7. Magnetic Hysteresis 8. Energy Expended 9. Energy Stored. Contents: Introduction to the Process of Magnetism Production of EMF Faraday's Laws of Electro-Magnetic Induction Lenz's Law Induced EMF [...]

By Vivek C|2017-11-09T17:50:02+05:30November 9, 2017|Magnetism|Comments Off

Change of Polarities of an Electro-Magnet | Magnetism | Electrical Engineering

When a coil of insulated wire is placed around a magnetic substance and electric current is passed through the coil, the substance becomes an electro-magnet and produces flux. The magnetic substance is called 'magnetic core', the coil around it is called 'magnetising coil' and the current flowing through the coil is called 'exciting current'. The polarity developed at any end [...]

By Mumtaznash|2017-04-21T09:03:35+05:30April 21, 2017|Magnetism|Comments Off