洗衣機的能源標籤,耗電量為250千瓦小時。若每年使用260次,每次洗衣機的平均工作時間為1.8小時,如何計算洗衣機消耗的平均電功率?
請寫明計算步驟和答案!
如何計算這能源標籤的平均電功率?急,請快幫忙.
2008-10-18 1:16 am
回答 (1)
2008-10-18 5:08 am
✔ 最佳答案
Total time in using the washing machine in a year = 260x1.8 hrs = 468 hrs.Since 250 kWh = 250x1000 Wh = 250,000 Wh
hence, average power consumed by the washing machine
= 250000 Wh/468 hrs = 534 W
收錄日期: 2021-04-29 17:29:09
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