How many square meters of photovoltaic cells would be required to light a 100-W bulb? The efficiency of photovoltaic cells is 15% for converting 1000 W/m ² of solar energy to electricity.

Question

Quizplus · Accepted Answer

To light a 100-W bulb continuously, we need 100 W of power. Given the efficiency of photovoltaic cells is 15%, and they convert 1000 W/m^2 of solar energy to electricity, we calculate the required area as follows: $ \text{Area} = \frac{\text{Power needed}}{\text{Efficiency} \times \text{Solar power per m}^2} = \frac{100}{0.15 \times 1000} = \frac{100}{150} = 0.666... $ m^2, which is approximately $6.6 \times 10^{-1} $ m^2.

How Many Square Meters of Photovoltaic Cells Would Be Required