PH-328
D.c. motor
Physics · Secondary 3 · Medium · D.c. motor
A student wants to increase the turning effect (torque) of a simple d.c. motor without changing the battery. Which change would be most effective?
- Use stronger magnets for the field.
- Reduce the number of turns on the coil.
- Move the magnets further away from the coil.
- Use thinner wire so the resistance is higher.
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