首先因为家庭前弯渣电路所以闹友U=220v所以Q=w/慧悄u=72000J/220v=327.3cI=Q/t=327.3c/60=5.5A
3600/11c 60//11A
由题意可知:W=72000J,U=220V,t=1min=60s 由W=UIt可得:I=W/Ut=72000J/220V×60S=5.45A 由I=Q/t得:Q=It=(W/哪扮卜液Ut)×t=W/李弊灶U=72000J/220V=327.27库仑