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Examoogle • User • info@examoogle.com • EE-2024-8821
Chapter 1 of 12 • Page 1 of 248🔒 Protected PDF • Watermarked
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The output of a solar cell is of the order of
0.1 W
0.5 W
1 W
5 W
0.1 W
Quick Summary: A standard silicon photovoltaic cell typically produces an open-circuit voltage of about 0.5 V to 0.6 V. Given a standard cell area of approximately $100 \text{ cm}^2$ and an irradiance of $1000 \text{ W/m}^2$ (standard test conditions), the power output is generally in the range of 1 W.
A standard silicon photovoltaic cell typically produces an open-circuit voltage of about 0.5 V to 0.6 V. Given a standard cell area of approximately 100 cm2 and an irradiance of 1000 W/m2 (standard test conditions), the power output is generally in the range of 1 W.
Pmax=Vmp×Imp — Maximum power output calculated from voltage and current at maximum power point
Pin=A×I×η — Theoretical output power based on area A, irradiance I, and efficiency η
The solar cell functions based on the photovoltaic effect, where incident photons with energy greater than the bandgap energy of the semiconductor (usually silicon) generate electron-hole pairs. These charge carriers are then separated by the built-in electric field at the p-n junction, creating a photovoltage and a photocurrent across the cell terminals.
A single solar cell generates a very low voltage (approx. 0.5-0.6 V).
To achieve higher voltage or power, cells are connected in series and parallel combinations to form a solar module.
Standard power output is determined under Standard Test Conditions (STC) at 25°C and 1000 W/m2.
Renewable and clean energy source
Low maintenance cost once installed
Intermittent energy availability
Low energy conversion efficiency
Solar calculators and wristwatches
Remote power systems and satellite arrays
The 1 W rating is a common industry benchmark for a single standard-sized monocrystalline silicon cell.
Higher power outputs are achieved by grouping individual cells into a panel.
C is correct — A single solar cell under standard solar radiation conditions provides an output power of approximately 1 W.
Always remember that individual cells are connected in series to increase voltage and in parallel to increase current; the power per cell remains low, necessitating array configuration for practical usage.