Electromagnetism in Use Quick Check
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
O to control the strength of the magnet
O to latch onto and let go of objects
• to reduce wearing out of the magnet over time
1 answer
• to latch onto and let go of objects
50 answers