請問中電個電錶一度等於幾多焦耳呢 ?
回答 (3)
2010-03-17 6:44 am
✔ 最佳答案
每一秒用一火電 = watt / sec = 一焦耳60秒 x 60分鐘 = 3600焦耳 = 一度電
2010-03-16 22:47:17 補充：
60秒 x 60分鐘 x 1000watt = 3,600,000 watt/sec = 一度電
2010-03-16 23:10:35 補充：
修改
60秒 x 60分鐘 x1000watt = 3,600,000watt/hour = 一度電
2010-03-17 7:47 am
1kWh = 3600000J
1kW=1000W
1kWh=1000Js^-1
1h=3600s
1000J x 3600s
=3600000Js^-1
=3600000J
so 1KWh = 3600000J
1kW=1000W
1kWh=1000Js^-1
1h=3600s
1000J x 3600s
=3600000Js^-1
=3600000J
so 1KWh = 3600000J
2010-03-17 5:08 am
1 KW/h = 3600000 joule
收錄日期: 2021-04-19 21:40:52
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20100316000051KK01371