As far as my understanding goes it’s possible to create power with a magnet moving around a wire coil.
Couldn’t we use this effects and charge electrical vehicles by driving over magnets (most basic idea)?
In: Physics
There are talks of wireless charging systems for EVs. Which this idea is very similar to, so yes.
But if you are thinking this means an electric vehicle could drive forever, no.
You don’t just create energy out of nowhere. What you do is turn kinetic energy (motion) into electrical energy. Like in generators you actually have to use energy to push against the magnetic field and produce electricity. In this case, the car now has to push against the magnets.
This means that at best the amount of energy the car would get will be exactly equal to the amount of energy it spent moving over the magnets. The laws of physics mean you can never ever do anything more than break even. And in reality, you will have a ton of losses.
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