Magical induction heating – non-contact heat

Wow, I’ve always thought of this as pure magic but here’s the reasons behind the non-contact
heating appliances.

When an alternating electric current is passed through a coil, the coil creates a magnetic field. The magnetic lines of flux cut through the air around the coil. If a ferrous material, such a solid bar of iron is inserted into this coil, certain effects known as eddy currents are induced to flow in the metal bar. This causes localised heating, and ultimately heats up the metal bar.

In an induction heater, the coil is known as the ‘work coil’.

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2 Responses to Magical induction heating – non-contact heat

1. girrrrrrr2 says:

   August 27, 2007 at 4:13 pm

   wow… i should make one at school around the lamppost… and then bend it… and say that i did it with my brute strength…
2. Izl says:

   August 29, 2007 at 5:39 am

   Wow thats a unique one, never seen that in stores