
An electric motor. Image credit jeffryerickson.com
ZIMSEC O Level Combined Science Notes: Experiment:Making a model electric motor
Aim: To make a model electric motor
Materials: copper wires, switch, coil (made from varnished copper), magnet, paper clips, rechargeable battery
Method
- Set up the coil and magnet as shown in the diagram above
- Balance the coil using paper clips
- Attach the device to a switch and battery suing the copper wires
- Close the switch and observe the result
- Change the leads of the motor and close the circuit again
- Observer the way the coil turns
Results and Observations
- The rechargeable battery supplies Direct Current
- The motor converts electrical energy into kinetic energy
- When the switch is closed the coil starts to turn
- When the circuit is reversed the coil turns in the opposite direction
Conclusion
- A current carrying wire turns due to electromagnetic induction
To access more topics go to the Combined Science Notes page.
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