Mathematics, 07.12.2020 08:30, hanchinsko12

What must be done to the wires used to make an electromagnet before they connect A. The terminals of the battery must be coated with an insulating material
B. The wires must be rubbed with sandpaper to make their surfaces rough
C. The ends must be marked to show which end to attach to each terminal of the battery
D. The insulation must be removed from the ends of the wires

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What must be done to the wires used to make an electromagnet before they connect A. The terminals o...