DC circuitsQuestion 779 of 1506

What physical effect does a solar cell use to produce voltage?

  1. The Peltier effect
  2. Electrostatic attraction
  3. The Seebeck effect
  4. The photoelectric effect
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Correct answer: The photoelectric effect

Light knocks electrons loose from atoms.

Source: Lessons in Electric Circuits I: DC (Kuphaldt), 11.4: Special-purpose Batteries

Practice dc circuits

Questions last reviewed: 18 October 2026