一個KW的電熱水壼啟動了20min後,它所耗的能量是多小
想知條式係5係咁
1000w乘20乘60s
=1200 000J
= ? (好似仲有個答案要加埋MJ)
請問係咩
收錄日期: 2021-04-23 19:00:36
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20070402000051KK02350