Gerard Palmer wonders: if all motor vehicles were to be fitted with magnets and a copper cable buried in the road surface, would that produce electricity?
Elec

Dear Editor

I would be the first to admit that my knowledge of electrical engineering is rather sparse. I once knew Ohm’s Law, but it has long since slipped away from my memory. However, as I understand it, if you pass a magnet over a copper coil, you get a flow of electricity.

The notion that struck me whilst navigating the M50 was this: if all motor vehicles were to be fitted with magnets, and a copper cable were to be buried in the road surface, would that produce electricity?

I am hoping members with expertise in this regard can tell me whether this would work (or not).

Your faithfully

Gerard Palmer CEng FCIBSE MIEI

http://www.engineersjournal.ie/wp-content/uploads/2016/06/NRA-TRAFFIC-COUNTER-SITE-with-Renewable-power-supply-2-1024x577.jpghttp://www.engineersjournal.ie/wp-content/uploads/2016/06/NRA-TRAFFIC-COUNTER-SITE-with-Renewable-power-supply-2-300x300.jpgDavid O'RiordanElecelectricity,energy,transport
Dear Editor I would be the first to admit that my knowledge of electrical engineering is rather sparse. I once knew Ohm’s Law, but it has long since slipped away from my memory. However, as I understand it, if you pass a magnet over a copper coil, you get a...