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    3º ESO: How to make a doorbell

    Posted in: 3º ESO,3º PDC by correcarmela on Novembro 07, 2017

    Using your book (look for “Electromagnetic effects”) and searching information in internet, sure you can mak your doorbell.

    Some clues:

    The best will be to use recycled materials. As an example, better an empty can than a bell.

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