For the effective radiation of heat from an electric heater. Why should we polish it to shine but not keep it clean or paint it green or bla

Question

For the effective radiation of heat from an electric heater. Why should we polish it to shine but not keep it clean or paint it green or black?

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Thu Nguyệt 4 hours 2021-07-22T04:52:20+00:00 2 Answers 0 views 0

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    0
    2021-07-22T04:53:36+00:00

    Polish it so it can layer shine

    0
    2021-07-22T04:54:09+00:00

    Answer:

    Polish it to shine

    Explanation:

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