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30 March, 05:06

Which statement best describes a device that has a high energy efficiency? Its ratio of energy absorbed to energy released is high. Its ratio of energy input to energy output is high. It wastes little energy. It wastes a lot of energy.

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Answers (2)
  1. 30 March, 08:14
    0
    It wastes little energy

    Explanation:

    The efficiency of a machine refers to the ratio of work output to the work input as a percentage. The efficiency of most machines is less than 100% because some work is lost due to friction and heat. Therefore, a machine with high efficiency has less wastage of energy due to factors such as friction of the moving parts. Conversely, low efficiency means there is more wastage of energy.
  2. 30 March, 09:03
    0
    Answer: The answer is that it wastes little energy.
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