0.2 , 2000
转盘转动60转消耗电能:W=60×1/300kW•h=0.2kW•h=7.2×10 5J;又∵t=6min=360s,
∴家庭电路上消耗的实际功率为:
P=W/t=7.2×10 5J /360S=2000W.