来自常虹的问题
“220v,60w”接在电压110v,求实际功率
“220v,60w”接在电压110v,求实际功率
1回答
2020-03-28 17:33
“220v,60w”接在电压110v,求实际功率
“220v,60w”接在电压110v,求实际功率
R=220*220/60
P=110*110/R=110*100*60/220/220=15w