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What is the kilowatthour consumption of 40w lamp if it remains on for 1750h?
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∙ 11y ago
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∙ 11y ago
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What is the kilowatt-hour consumption of a 40W lamp if it remains on for 1750 hours?
40 watts is the same as 0.04 kW, so you can multiply that by the number of hours to get the energy.
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What is the kilowatt-hour consumption of a 40W lamp if it remains on for 1750 hours?
40 watts is the same as 0.04 kW, so you can multiply that by the number of hours to get the energy.
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Look on the lamp because somewhere on it the power consumption should be printed.AnswerThere is a legal requirement that a lamp's rated powerand rated voltage is shown on the lamp -often, this is printed on the glass envelope. Realise, however, that any variation from the rated voltage will result in a somewhat-larger variation in the rated power. An alternative method, of course, would be to connect a wattmeter into the lamp's circuit. Strictly-speaking, incidentally, power is NOT 'consumed', but merely tells us the rate at which ENERGY is consumed.
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You can convert a clamp on desk lamp to a lamp with a regular base by purchasing a tabletop bracket for the lamp. This bracket can act as a base for the lamp.
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