509,367 views 257 on YTPak
931 127

Published on 30 Apr 2010 | over 6 years ago

Follow us at: twitter.com/TutorVista


Check us out at www.tutorvista.com/content/physics/physics-iv/electromagnetic-induction/electromagnetic-inductionindex.php

Define Electromagnetic Induction

While Oersted's surprising discovery of electromagnetism paved the way for more practical applications of electricity, it was Michael Faraday who gave us the key to the practical generation of electricity: electromagnetic induction. Faraday discovered that a voltage would be generated across a length of wire if that wire was exposed to a perpendicular magnetic field flux of changing intensity.
An easy way to create a magnetic field of changing intensity is to move a permanent magnet next to a wire or coil of wire. Remember: the magnetic field must increase or decrease in intensity perpendicular to the wire (so that the lines of flux "cut across" the conductor), or else no voltage will be induced:

Please like our facebook page
www.facebook.com/tutorvista

Loading related videos...