A typical photovoltaic cell delivers 4.2×10−3 of electric energy when illuminated with 0.15 of light energy.
What is the efficiency of the cell?
What is the efficiency of the cell?
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Not sure what the units are but it doesn't matter as long as they are the same.
Efficiency = 100 * (Output / Input) = 100 * (0.0042) / 0.15 = 2.8 %
... which is lower than average.
Efficiency = 100 * (Output / Input) = 100 * (0.0042) / 0.15 = 2.8 %
... which is lower than average.