I know in junkyards cranes use electricity to make a magnet powerful enough to lift a car, but could a car battery be used the same way? Could it have enough juice to lift a car? Or maybe pull one?
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To lift a car? Not sure without actually calculating it, which can be done with some basic data about the battery and electromagnet coils, but I’ll wager not strong enough by a sizable margin.
Still, a car battery can put out some pretty high current for a short time, so it would still power a decent electromagnet, until it discharges.
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