The generator effect in a microphone
The generator effect in a microphone
A moving-coil microphone contains a diaphragm attached to a coil of wire. The coil is positioned in the gap between the north and south poles of a permanent magnet. The magnetic field points from the north pole to the south pole, downward throughout the gap.
Step-by-step lessons on AQA GCSE Physics 7.3.3 Microphones (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.