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Photo Voltaic Cell
Photo Voltaic Cell..
Photo Voltaic Cell..Photo Voltaic Cell
Photo voltaic cell converts light energy into electrical energy. It acts as a cell. It consists of a metal layer of copper over which a semiconductor layer of cuprous oxide coated with a thing film of silver or gol..
Coal and Petroleum
. The management of such non renewable energy sources involves slightly different perspectives from those resources discussed earlier in terms of policy and technology issues. One way of conservation and managing of these resources is to substitute existing technologies so that hydrocarbon fuels ar..
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