电子式电能表表盘上标有“3000imp⼀kW-h”字样,将某用电器单独接在该表上工作2min,电能表指示灯闪烁了30

2024-12-03 22:07:30
推荐回答(1个)
回答1:

电器消耗的电能:W=
30
3000
kW?h=3.6×10 4 J.
用电器的电功率:P=
W
t
=
3.6× 10 4 J
120S
=300W.
故答案为:3.6×10 4 J、300W.