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A typical photovoltaic cell delivers 3.8×10−3 {\rm W} of electric energy when illuminated with 0.14 {\rm W} of light energy.


what is the energy efficiency of the cell?
13 years ago

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Answered by Damon
you put 1.4 *10^-1 in
you get 3.8*10^-3 out
in percent that is
3.8^10^-3 * 10^2/1.4*10^-1
= (3.8/1.4) 10^0
= 2.7 percent
13 years ago
Answered by please help
thanks
13 years ago

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