this is my presentation1

1. BELL
Members of group: Daniela, Mireia and Andrea

2. LIST OF METERIALS:
1- Saw
2- Bolt
3- Small screws
4- Nuts
5- Terminal
6- Pieces of metal
7- Key
8- Wire

3. PROCESS:
• First the doorbell is pressed, this makes the circuit close and
current begins to flow
• Thus current passing through the magnetic circuit generates a
force that attacs the armature A.
• Going up the armor, the hammer strikes and B and emits a
sound, while the circuit is opened and stops the force that
attracts the armature, bringing this back and the process
begins again.

5. Thanks for your atention!