Make a diagram of electric bell and explain its working system

Explanation: The electric bell:

•  Figure shows a simple electric bell. It consists of an electromagnet, an armature, a contact adjusting screw, A gong and hammer.
• The armature consists of a soft iron rod mounted on a spring.
• One end of the iron rod presses against the top of the contact adjusting screen.
• When the switch is pressed on, current flows in the electromagnet.
•  It then attracts the iron rod towards itself, causing the hammer to strike the gong.
•  At the same time, the armature loses contact with the screw and the current is switched off.
• This causes the electromagnet to lose its magnetism and the armature springs back to its original position to close the circuit once again.
• Current flows again and the cycle repeats itself till the current is switched off.