Question

Draw a diagram of working of an electric bell​

Answer 1

$\huge{\tt{\red{}\green{A}\purple{N}\pink{S}\blue{W}\orange{E}\red{R}}}$

Working

• When a push button fitted in a battery is pressed, the current flows through the contact points via an electromagnet.
• The U shaped electromagnet is magnetized and it attracts the armature towards it.
• The hammer fitted with strip gives a strike on the gong producing sound.
• The moment this happens, contact of the attached spring with screw is broken, i.e. the circuit is broken.
• As a result, current stops flowing and the electromagnet is demagnetized.
• Due to this action of the spring, armature comes to its previous position, i.e. comes in contact with the screw and the circuit is again completed.
• Each approach of the armature or strip causes the hammer to strike the gong.
• Thus, the same process is repeated many times and the bell goes on ringing.

Answer 2

An electric bell is a mechanical or electronic bell that functions by means of an electromagnet. ... When an electric current flows through the coils, the electromagnet creates a magnetic field which pulls the armature towards it, causing the hammer to strike the bell.