一电风扇的功率为10W,则它在1min内消耗的电能是多少?

问题描述:

一电风扇的功率为10W,则它在1min内消耗的电能是多少?

1min=60s w=pt=10w*60s=600J 1度电=1Kw*h=3.6*10^6J

W=Pt=10W*1*60s=600J

1min=60s W=Pt=10w*60s=600J 1度电=1kw*h=3.6*10^6J由以上三式可得 E耗=1.67*10^-2kw*h望采纳

W=Pt=100×60=6000J望采纳

根据电功率的公式P=W/t,变形为W=Pt得:
它在1min内消耗的电能是W=Pt=10W*60s=600J.

w=pt 1min=60s w=10w×60s=600J