Question

write construction and working of electric bell

Answer 1

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Here is your answer!

The construction of an electric bell:

The construction of an electric bell consists of a gong, an electromagnet, a soft iron rod and a contact screw.

The working of an electric bell:

When the current passes through the electromagnet, it becomes magnetized which helps to attract the armature and after this the hammer raids and attract the armeture. At that time, electromagnet didn’t behave as a magnet because of the breaking contact with the screw. So, again armeture comes down to make the contact with the screw. This cycle keeps on repeating. 

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Answer 2

here is ur answer

An electric bell is a mechanical bell that functions by means of an electromagnet. When an electric current is applied, it produces a repetitive buzzing or clanging sound. Electric bells have been widely used at railroad crossings, in telephones, fire and burglar alarms, as school bells, doorbells, and alarms in industrial plants, since the late 1800s, but they are now being widely replaced with electronic sounders. An electric bell consists of one or more electromagnets, made of a coil of insulated wire around an iron core, which attract a springy iron armature with a clapper. When an electric current flows through the coils, the electromagnet creates a magnetic field which pulls the armature towards it, causing the clapper to strike the bell.


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