True or false?
an advantage of using an electromagnet, shown on the crane in the image below...
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Mathematics, 20.10.2019 07:30 sashllely563
True or false?
an advantage of using an electromagnet, shown on the crane in the image below, instead of a regular magnet to move cars in a junkyard is that an electromagnet can be easily turned on and off.
a. true
b. false
!
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