Question

calculate the power delivered by a solar cell of area 5cm2 just above the surface of the earth and efficiency 20 percent.

Answer 1

Given:

Area(A) = 5cm² = 0.0005 m²

Efficiency(η) = 20%

To find:

The power delivered by the solar cell

Calculation:

The efficiency of a solar cell is given by the formula

              $\eta=\frac{P{max}}{E\times A}$

Where E is solar flux (Taken as 1000 W/m²)

Substitute the given values in the formula

              $\eta=\frac{P{max}}{E\times A}$

              $P_{max}=\eta \times E\times A$

              $P_{max}=20\times1000\times 0.0005$

              $P_{max} =10W$            

Final answer:

The power delivered by the solar cell is 10 W

             

Answer 2

Answer:

Hope this helped you.

Thank you.