What is the efficiency of a solar cell if 1000 J of solar energy hits the cell and 200 J are converted into electrical energy?

Question

What is the efficiency of a solar cell if 1000 J of solar energy hits the
cell and 200 J are converted into electrical energy?

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Huyền Thanh 5 years 2021-08-11T14:25:09+00:00 1 Answers 17 views 0

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  1. thachthao
    0
    2021-08-11T14:26:49+00:00
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    Answer:

    Efficiency = 20%

    Explanation:

    Given the following data;

    Input energy = 1000 Joules

    Output energy = 200 Joules

    To find the efficiency of the solar cell;

    Efficiency = \frac {Out-put \; energy}{In-put \; energy} * 100

    Substituting into the formula, we have;

    Efficiency = \frac {200}{1000} * 100

    Efficiency = 0.2 * 100

    Efficiency = 20%

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