Domestic or Industrial
Voltage. preferred size, type of mounting.
It includes establishments making electric bells
you can get electric door bells......
There are butler bells, cow bells, electric bells, ice cream truck bells, school bells, alarm bells, wedding bells, jingle bells, silver bells, ambulance bells, church bells, death bells, funeral bells. I can not think of anything else. Oh wait, when you get an idea, you get a lightbulb in your held and a bell ringing in the background.
The electric doorbell was invented in 1831.
Electric bells are commonly used for signaling purposes in various applications such as doorbells, fire alarms, and school bells. They work by converting electrical energy into mechanical sound vibrations, producing a loud ringing noise to alert individuals or signal the occurrence of an event. Additionally, electric bells are also utilized in industrial settings for process control and as warning devices in machinery.
Seth W. Fuller has written: 'Electric annunciators' -- subject(s): Clocks and watches, Electric, Advertising cards, Bells, Electric Clocks and watches
An electromagnet is a magnet carrying an electric current. This can be useful for many things. eg, door bells.
some electric calling bells, computers, Battery chargers etc
speakers alarm bells electric motors
Large bells are out of fashion in schools today, but the electric version (sounding more like buzzers to be true) replaced them in most schools to signal the end of classes or recess.
Steven J. Marrano has written: 'The electrical systems design & specification handbook for industrial facilities' -- subject(s): Electric equipment, Buildings, Factories, Electric engineering
Electromagnets are commonly found in various everyday electronics that have moving parts. Some examples are electric windows, radio speakers, cranes to lift heavy materials, electric bells and microphones.