Identifier:
E&M: Ind - 026
Concept Overview:
- Electromagnetic Induction
- Wireless Transmission of Sound
Lecturer Procedure
Step(s) to Follow
- Turn on radio and adjust volume.
- Adjust tuner to get a good signal.
- Turn on speaker
- Move coils closer and farther from each other and listen to the result
Expected Result
The music will be louder when the coils are closer.
Variation: Ask for a volunteer to use their personal device (that has a headphone port) for the demo rather than the transistor radio.
Tutorial:
Set-up Instructions for E&M: Ind - 26
Transcript:
0:11-0:17 Music can be heard playing
0:17-0:20 Music stops playing
0:20-0:31 Music begins playing again
0:31-0:35 Music stops playing
0:35-0:36 Music begins playing again