A solar panel’s maximum-power operating point is 18 V,5.56 A; open-circuit voltage and short-circuit current are 21.6 V,6.11 A. Find fill factor (two decimals).
Fill factor is maximum rectangle power divided by VocIsc: FF=(18×5.56)/(21.6×6.11)=0.7583, or 0.76. Open-circuit and short-circuit conditions do not occur simultaneously in normal power delivery.
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