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The electric bell

bell. The electric bell. striker. springy metal. iron. electromagnet. make and break contact. push switch. click. Coil becomes a magnet -. S. N. ON. Current flows. click. S. N. - and pulls the striker across. but breaks the circuit. click. So the coil is

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The electric bell

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Presentation Transcript

  1. bell The electric bell striker springy metal iron electromagnet make and break contact push switch click

  2. Coil becomes a magnet - S N ON Current flows click

  3. S N - and pulls the striker across but breaks the circuit click

  4. So the coil is no longer a magnet - so the striker springs back completing the circuit again click

  5. S N The process is then repeated until the bell is switched OFF click

  6. S N

  7. S N

  8. S N

  9. S N

  10. S N

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  12. S N

  13. S N

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  15. S N

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  17. S N

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  21. S N

  22. S N

  23. S N

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