How the tape of a tape recorder reproduces voice?

Explanation

1) The tape recorder which we use to listen songs or record voices works on the principle of electromagnetic induction.
2) IF consists of a piece of plactic tape coated with iron oxide and is magnetised more in some parts than in others.
3) When the tape is moved past as a small coil of wire (head of the tap recorder).the magnetic field produced by the tape changes. WHich leads to generation of current in the small coil of wire.
4) This small current will be connected into sound by speaker.
5) Thus the voice will be reproduced from the tape of a tape recorder.