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Unit 1.7.3 Energy Resources SUPPLEMENT
Know that radiation from the Sun is the main source of energy for all our energy resources except geothermal, nuclear and tidal
Know that energy is released by nuclear fusion in the Sun
Know that research is being carried out to investigate how energy released by nuclear fusion can be used to produce electrical energy on a large scale
Define efficiency as:
(a)
(%) efficiency = (useful energy output)
(total energy input) (× 100%)
(b)
(%) efficiency = (useful power output)
(total power input) (× 100%)
recall and use these equations
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