Home › Maharashtra SSC (Class 10) › Science › Towards Green Energy › The potential difference available from a single…
The potential difference available from a single silicon solar cell is about 0.5 V. How does this voltage change if the area of the cell is increased?
AIt increases in proportion to area
BIt decreases as the area increases
CIt becomes zero for large areas
DIt stays the same, area aside
Answer & Solution
Correct answer: D. It stays the same, area aside
1. A single silicon solar cell gives about 0.5 V of potential difference.
2. The chapter states the voltage available from a cell is independent of its area.
3. Only the current produced scales with the cell area, not the voltage.
4. So increasing the area does not change the 0.5 V, ruling out option A.
5. The voltage does not fall either, ruling out option B.
6. It also never drops to zero for a working cell, ruling out option C.
7. Hence the voltage stays the same regardless of area.
_Source: Balbharati (Maharashtra Board) Class 10 Science & Technology Part 2, Ch 5 "Towards Green Energy", p.65_
Related questions
According to the chapter's data, which energy source supplies the largest share of electriWind turbines are most suitably installed on sea shores chiefly because such locations usuWhy are energy sources like sunlight, wind and water reservoirs described as suitable for Which of the following is correctly described as a green (environment-friendly) energy souThe electrical energy produced by a solar photovoltaic cell is of which nature, requiring A good solar cell has an efficiency of about 15%. If a solar panel receives 100 watt of poWhen two identical solar cells are connected in series, how do their potential differencesA 1 cm² silicon solar cell gives about 30 mA of current. Approximately what current will a