Solar cell (or photo voltaic cell) is a device which converts:
Correct answer: B. Light energy into electrical energy
- A. Chemical energy into electrical energy
- B. Light energy into electrical energy
- C. Electrical energy into light energy
- D. Chemical energy into light energy
Explanation
A solar cell, also known as a photovoltaic cell, is a device that converts light energy, typically from sunlight, directly into electrical energy through the photovoltaic effect.When photons (particles of light) strike the semiconductor material within a solar cell, they transfer their energy to the material. This energy excites electrons, allowing them to break free from their atomic bonds, resulting in the creation of electron-hole pairs. The internal electric field within the semiconductor then separates these charge carriers, generating an electric current.In summary, a solar cell or photovoltaic cell converts light energy into electrical energy by utilizing the photovoltaic effect within the semiconductor material.
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About Electrical Properties of Solids
Electrical properties of solids depend on their band structure, charge carriers and conductivity. The topic compares conductors, insulators and semiconductors, relates resistivity to temperature, and covers intrinsic and extrinsic semiconductors, donor and acceptor impurities, electron and hole conduction, and the formation of p-type and n-type materials.
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