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1. |
Which of the following describes an electric motor? |
A. | Is found in many appliances with moving parts, like a vacuum cleaner or a blender. |
B. | Changes electric energy to mechanical energy. |
C. | Uses the interaction between a spinning coil of wire and magnet. |
D. | Can be powered by a hand crank. |
Answer» C. Uses the interaction between a spinning coil of wire and magnet. | |