alleryA 1 cm² silicon solar cell gives about 30 mA of current. Approximately what current will a 100 cm² silicon solar cell of the same type produce?
AAbout 30 mA
BAbout 3 A
CAbout 0.5 A
DAbout 300 A
Answer & Solution
Correct answer: B. About 3 A
1. Current from a solar cell scales with its area.
2. Current = 30 mA/cm² × 100 cm² = 3000 mA.
3. Convert: 3000 mA = 3 A.
4. Keeping 30 mA (option A) ignores the area increase, a trap.
5. 300 A (option D) misplaces the decimal by a factor of 100, so it is wrong.
6. So the 100 cm² cell gives about 3 A.
_Source: Balbharati (Maharashtra Board) Class 10 Science & Technology Part 2, Ch 5 "Towards Green Energy", p.65_
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