__________ utilise a thin band of a material that becomes conductive when exposed to light of a minimum frequency.
__________ utilise a thin band of a material that becomes conductive when exposed to light of a minimum frequency. Correct Answer Photoconductors
It’s an optical and electrical phenomenon in which a material becomes more electrically conductive because of the absorption of electromagnetic radiation such as visible light or gamma radiation. Whenever light is absorbed by a material such as a semiconductor, the number of free electrons and electron holes inc. and raises its electrical conductivity.
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Feb 20, 2025