How do microphones work? I just do not get it.
In: 85
I’ll go and actually say how I’d explain it to a 5yo.
Sound is just air vibrating at some speed. A microphone uses a membrane with a magnet that moves when vibration of the sound hits it, and a wrapped coil of wire, because magnets moving through coils cause eletricity to appear in the coil. There’s also a different type of microphone that uses two thin sheets of metal foil + electricity flowing from one to the other when vibrations hit them, instead of magnets. Bottom line is – microphones are devices that vibrate because the air vibrates, and that vibration is then translated to electricity also „vibrating” in that same way.
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