- Microphones Are Used To Convert Sound Vibrations To Part A Electrical Signals In One Kind Of Microphone Sound Waves Mo 1 (47.83 KiB) Viewed 82 times
Microphones are used to convert sound vibrations to Part A electrical signals. In one kind of microphone, sound waves move a coil of wire up and down in a magnetic field, as shown in (Figure 1). The coil shown has a If the microphone's emf at some instant is 20mV, what is the speed of the coil? diameter of 1.4 cm and has 100 turns; the 0.010 T Express your answer with the appropriate units. magnetic field points radially out from the north pole to the south.