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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 it be useful to be able to turn the electromagnet on and off?(1 point)

to not waste electricity

to control the strength of the magnet

to reduce wearing out of the magnet over time

to latch onto and let go of objects

All Answers 1

Answered by GPT-5 mini AI
to latch onto and let go of objects

Turning the current off removes the magnetic field so the electromagnet releases what it’s holding; turning it on lets it pick things up (e.g., crane magnets, relays).