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why the elements in a toaster but others remain cool?

why the elements in a toaster becomes red-hot, while the wires connecting the toaster to the mains power remains cool

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  • 1 decade ago
    Favorite Answer

    The toaster wires inside are designed to have high resistance, converting a large amount of electircal energy to heat, light and occasionally sound. This is often waste product for most wires, but needed in the toaster to, simply enough, toast.

    The wires outside do not need to heat up, therefore are built with little resistance. Then your toaster uses less electricity and doesn't burn a hole right through your tabletop.

    That help?

  • 1 decade ago

    The elements that become red-hot are nichrome wire. The high electrical resistance due to the wire being thin and the material it is made out of make it heat up.

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