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Doesn't it take a lot of energy to have such a big magnetic field?
by arez 8y ago
Doesn't it take a lot of energy to have such a big magnetic field?
- saagarjha 8y agoIt does, which is why most fusion reactions currently produce a net negative amount of energy.
- whatshisface 8y agoFundamentally it doesn't have to, because like a weight resting on the top of a ladder magnetic fields store energy and do not dissipate it. In practice it does because our ways of producing and maintaining strong magnetic fields require a lot of upkeep. This, like most things in fusion, is an example of where the realities of present day engineering are far cruler than the laws of physics.