The motor effect
The motor effect
The motor effect is the force experienced by a current-carrying conductor when it is placed in a magnetic field. A loudspeaker uses this effect to change an electrical signal into movement.
Step-by-step lessons on AQA GCSE Physics 7.2.4 Loudspeakers (HT only). Each one builds up to exam-style questions. Build a strong grip on equations, units and Key Stage 3 fundamentals before tackling the more demanding topics like electromagnetism, the particle model of matter and space physics.