A Solar Cell Has a Light-Gathering Area of 10 Cm²

question 20

Multiple Choice

A solar cell has a light-gathering area of 10 cm² and produces 0.2 A at 0.8 V (DC) when illuminated with S = 1 000 W/m² sunlight. What is the efficiency of the solar cell?

• A) 16%
• B) 7%
• C) 23%
• D) 4%
• E) 32%

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