A typical electrical power output from a single solar cell is_____________?
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Answer: B. 0.26 V
Explanation
A single silicon photovoltaic solar cell produces an operating voltage typically around 0.26 to 0.5 volts. Semiconductor bandgap physics in silicon limit the open-circuit voltage to roughly 0.6 volts maximum. Operating voltage under typical electrical load conditions commonly settles near 0.26 volts. Photovoltaic cells convert sunlight photons directly into electrical energy via the photoelectric effect. Open-circuit voltage drops slightly as operating temperature and illumination levels fluctuate. Multiple solar cells are connected in series to achieve practical working voltages for devices.
Solar panel modules combine dozens of individual cells in series to achieve standard 12V or 24V outputs. Renewable energy engineers calculate total string lengths based on single-cell voltage characteristics. Understanding solar cell voltage is essential for designing efficient photovoltaic power systems. Option A suggests a voltage that is too low for a standard operating silicon solar cell. Option C of 1.1 volts exceeds the physical bandgap voltage limit of standard silicon cells. Option D of 2 volts is typical of lead-acid storage cells, not photovoltaic solar cells.
- Subject
- Engineering
- Category
- Electrical Engineering
- Topic
- —
- Difficulty
- medium
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