Till now all we’ve been talking about so far is how wireless power is so cool and how this man called Tesla was the 1st one to come up with this idea. But what we haven’t talked about yet is that how this so called magic trick actually works….
Well… since this post involves a bit of science and physics….. so for those of you who don’t like science … bear with us.
To simplify things… We’ll start with the basics.
There is a phenomenon in physics called electro-magnetic induction. What essentially happens in this phenomenon is that when electricity passes through a metallic coil, it produces a magnetic field. Now if a second metallic coil is kept in such a way, that it is parallel to the 1st coil, an electric current will start flowing through it. This is essentially how electromagnetic induction works. This is also the same way a transformer steps up and steps down the voltage. All you need to do is increase or decrease the number of rings in the coil, depending if you want to step up the voltage or step down the voltage.
But then how is wireless power different from a transformer?
Well… here it gets interesting…. In the case of wireless power, the electric coil is tuned to a fixed frequency…. The second coil… which is at a distance apart is also tuned to the same frequency… when electricity passes through the 1st coil, coupled resonance takes place allowing the electricity to flow through the second coil wirelessly… the following video will demonstrate this more clearly…
So that’s how wireless power actually works… hope you enjoyed reading the post. Stay tuned for more.. cheers !!
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