How are electromagnets used in bells?
Electric bells use electromagnets. When the electromagnet has pulled the striker towards the gong, the current stops to let the striker move back away from the gong again. The current restarts and the movement of the striker continues. The circuit is constantly made and broken.
Why do we ring bells?
The primary purpose of ringing church bells in modern times is to signify the time for worshippers to gather for a church service. … The ringing of church bells three times a day also resembles the Islamic tradition of the adhan in which the faithful are called to prayer from a minaret.