Determine the energy flux on Earth from the Sun, which is (150 times 10^{6} mathrm{~km}) away, using

Question:

Determine the energy flux on Earth from the Sun, which is $150 \times 10^{6} \mathrm{~km}$ away, using (13.12). Taking into account that a photovoltaic panel can have an efficiency of $20 \%$, estimate the electrical power produced by a solar panel placed in a direction perpendicular to the Sun's rays and in the absence of clouds.

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