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    • A blue toned electrical circuit.
    Rights: Mikhail Tchkheidze, licensed through 123RF.com Published 2 September 2010, Updated 29 April 2020 Size: 490 KB Referencing Hub media

    An electrical circuit is made of materials that have different conductivities and contain numerous switches. This controls the flow of electricity through different parts of a circuit.

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      Electricity and sensors

      All materials are made up of tiny particles called atoms. Atoms are made up of even smaller particles called protons, neutrons and electrons. The protons found in the atom have a positive charge ...

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