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PRACTICE · MEMBERSIntermediate · Single correct

PRACTICE / LEDs, photodiodes and solar cells

Multiply values from the same load state

Under fixed illumination, a solar cell has measured delivered-current pairs: (0 V, 40 mA), (0.20 V, 36 mA), (0.40 V, 30 mA), (0.50 V, 20 mA), and (0.60 V, 0 mA).

What is the largest electrical power demonstrated by these sampled points?

Organize the givens & assumptions
  • Five paired terminal voltage/current observations
  • Current is positive out of the cell into the load

Same illumination and temperature at all points; these are samples, not a complete specification of the continuous I–V curve.

  1. A24 mW24\ \mathrm{mW}
  2. B12 mW12\ \mathrm{mW}
  3. C10 mW10\ \mathrm{mW}
  4. D0 mW0\ \mathrm{mW}

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