how an electric bell work?

 HI HERE IS AN IMAGE I THINK YOU KNOW PARTS OF THE BELL AND WHERE THEY ARE LOCATEDFile:DoorBell 001.jpg

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Construction and Working of an Electric Bell

Circuit

  • An electric bell consists of an iron core, on which is wound a wire as a coil.
  • One end of the coil is connected to one terminal of a battery, and the other end to a steel rod that acts like a spring for the hammer touching the screw contact.
  • The other terminal of the battery is connected to the screw contact with a switch in the middle.

Working

  • Electric current flows through the coil when the switch is ON, and the iron core acts as an electromagnet.
  • The iron core attracts the hammer towards it.
  • The hammer hits the bell and produces a sound.
  • The circuit breaks at the screw contact when the hammer moves towards the iron core. At this point, the iron core ceases to be an electromagnet.
  • The hammer is pulled back to its original position due to the spring action of the steel rod, and then touches the contact again to complete the circuit.
  • The circuit is completed and current flows through the coil again, and the hammer strikes the bell again.
  • The process repeats itself and you hear a ringing sound since the hammer keeps hitting the bell, until the switch is released.

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An electric bell is made up of a coil of wire wound on an iron piece which acts as an electromagnet, when the electric current is passed through it. An iron strip with a hammer at one end is kept close to the electromagnet. There is a contact screw near the iron strip.

 When the switch is in the 'ON'  position, the current flows through the coil, it becomes an electromagnet. It  pulls the iron strip and the hammer at the end of the strip strikes the gong to produce sound. When the electromagnet pulls the iron strip, the circuit breaks and the current stops flowing. The above process is repeated again and again to continue producing sound.

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Hi Richadave!

Please refer to the answers given by Prakhar and Angels.fairies!!

Good work @Prakhar and Angels.fairies!! Keep writing!!

Cheers!!
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