Learn more physics!
I was just wondering if there is a way to make enegy that would could be stored using magnetism?
- Paul (age 12)
If you have electrical energy, it can be used to get current going in
big superconducting magnets. If these are then left in 'persistent
mode', with the current circulating entirely in the superconductor, the
energy is stored in the magnetic field. People have talked about using
this scheme, but I guess right now it's not economical.
(published on 10/22/2007)
Follow-up on this answer.