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Briefly explain how emf is generated in a solar cell. - Physics

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प्रश्न

Briefly explain how emf is generated in a solar cell.

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उत्तर

Process of emf generation in a solar cell:

  1. Light falls on the junction. Electron-hole pairs are generated.
  2. The electron and hole move in opposite directions due to the junction field. Electrons move towards the n-side and holes move towards the p-side of the junction.
  3. The two sides of the junction become oppositely charged and a photovoltage is generated.
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2021-2022 (March) Term 2 - Outside Delhi Set 1

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