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Indeed. An electromagnet is a magnet! However usually these are quite weak even with iron cores.
by petermcneeley 8y ago
Indeed. An electromagnet is a magnet! However usually these are quite weak even with iron cores.
- jacquesm 8y agoQuite weak? Electromagnets can be as powerful as you want in a given space provided you can cool them and you can avoid saturating the core.
- petermcneeley 8y agoI more mean in reference to using them as an opposing magnetic field for using in an electric motor. Like suppose he simply put two PCB electromagnets together. What would you expect the force to be?
- jacquesm 8y agoI'm sorry I read your comment as a general statement on electromagnets. Yes, two PCB based electromagnets are not going to be able to make a very dense magnetic field. The major reason is that the current carrying capacity and cooling will be lousy. But a sizeable electromagnet made from a copper coil and a half decent core material will happily lift your car.