4.7.2.4

4.7.2.4 Loudspeakers (physics only) (HT only)

4.7.2.4 Loudspeakers (physics only) (HT only)

Content

Loudspeakers and headphones use the motor effect to convert variations in current in electrical circuits to the pressure variations in sound waves.

Students should be able to explain how a moving-coil loudspeaker and headphones work.


Resources

Video

Practicals

Practical

Demo:

Safety

Asthma attack risk for selected student?