Fuji Xerox DocuPrint CM305 df - Page 842

10 – 2
Chapter 10 Machine Overview
These electrical signals are analog signals that fluctuate in response to the volume of the voice.
Gnb06021KA
N
S
N
S
String telephone
Telephone
Hello
Hello
Hello
Vibration
Electromagnetic induction
a
b
Hello
Electrical current
Diaphragm
SpeakerMicrophone
Diaphragm
Magnet (N polarity)
Magnet (S polarity)
a. The coil in the magnetic field is vibrated.
b. An electric current (alternating current) is generated in the coil.
The magnetic field around the coil is altered.