下表为双马牌洗衣机的铭牌,该洗衣机在额定电压下洗衣时,通过洗衣机的电流是______A,脱水时通过洗衣机的电流是____

1个回答

  • (1)洗衣机洗衣时的电流I 洗衣=

    P 洗衣

    U =

    330W

    220V =1.5A;

    (2)脱水时的电流I 脱水=

    P 脱水

    U =

    300W

    220V ≈1.36A;

    (3)洗衣用时0.5h,脱水用时0.1h,

    洗衣机消耗的电能W=P 洗衣t 1+P 脱水t 2=0.33kW×0.5h+0.3kW×0.1h=0.195kW•h.

    故答案为:1.5;1.36;0.195.