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A fan, rated 50 W , uses 90 000 J of electrical energy. How long was the fan switched on? * |
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Answer» 1800 seconds or 30 minutes Explanation:power= work / time therefore, time=work / power i.e., time = 90000/50 = 1800 seconds = 30 minutes HOPE it helped you If yes, then plz MARK me as the BRAINLIEST thank you |
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