Chemistry, 06.02.2021 04:40 sadie83

An electromagnet is the most powerful type of magnet there is it is a magnet with a current running through it that can be turned on and off. Why might be useful to be able to turn the electromagnet on and off point ? to not waste electricity
to latch onto and let go of obiects
to control the strength of the magnet
To reduce wearing out of the magnet over time

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An electromagnet is the most powerful type of magnet there is it is a magnet with a current running...