您的位置: 首页  >  作业答案  >  英语  >  一个简单的物理题（in english)A heater used on a 250V mains circuit(电路） has a 5A fuse（保险丝） in its plug（插头）.which is the hightest power rating for this heater?A 50W B 250W C 1000W D 2000W

一个简单的物理题（in english)A heater used on a 250V mains circuit(电路） has a 5A fuse（保险丝） in its plug（插头）.which is the hightest power rating for this heater?A 50W B 250W C 1000W D 2000W

分类: 作业答案 • 2022-01-07 12:08:47
问题描述：

一个简单的物理题（in english)
A heater used on a 250V mains circuit(电路） has a 5A fuse（保险丝） in its plug（插头）.
which is the hightest power rating for this heater?
A 50W B 250W C 1000W D 2000W

答

P=UI=250*5=1250 W
1000W选择：C.

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