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      Question

      In the sunlight-powered photo-capacitor developed at

      CeNS, the capacitance under illumination increased from 570 mF cm ⁻ ² to what value at 15 mA cm ⁻ ²?
      A 740 mF cm⁻² Correct Answer Incorrect Answer
      B 800 mF cm⁻² Correct Answer Incorrect Answer
      C 850 mF cm⁻² Correct Answer Incorrect Answer
      D 880 mF cm⁻² Correct Answer Incorrect Answer
      E 920 mF cm⁻² Correct Answer Incorrect Answer

      Solution

      The capacitance under illumination rose from 570 mF cm ⁻ ² to 880 mF cm ⁻ ² at 15 mA cm ⁻ ² . This change is also described as an increase of about 54% , reflecting enhanced charge generation and transport under light.

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