Biology, 07.12.2020 06:50, janetexcoelho

Which action is the best way to turn an electromagnet on and off? A. Add a switch to the electrical circuit

B. Slide the magnetic core in and out of the wire coil.

C. Increase or decrease the temperature.

D. Change the shape of the wire coil.

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Which action is the best way to turn an electromagnet on and off? A. Add a switch to the electrical...