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. On an isolated island off the coast of New Waterford a man and woman live in bucolic bliss reading and watching television. The power for these activities comes from

a wind generator that charges batteries. At night the wind drops to such a low value that the batteries are discharged. The wife reads by alight bulb that has resistance of 100ohms and is connected to a 100-volt line while the husband watches a TV that draws 100 watts of power. Both activities continue for three hours and

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