Which of the following will NOT increase the speed at which a d. c. (direct current) electric motor rotates?
1. Swapping around the electrical connections to the battery which powers the
motor
2. Increasing the strength of the magnet inside the motor
3. Lubricating the moving parts of the motor
4. Replacing the wire which forms the coil with a type of wire which has a lower
electrical resistance
Answers: 1
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Which of the following will NOT increase the speed at which a d. c. (direct current) electric motor...
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