The property manager went to Li Ming's house to collect the electricity bill. He looked at Li Ming's watt-hour meter, as shown in the figure. Then he checked from the notebook that the reading of the

The property manager went to Li Ming's house to collect the electricity bill. He looked at Li Ming's watt-hour meter, as shown in the figure. Then he checked from the notebook that the reading of the electric energy meter last month was 845.6. (1) power consumption W=W 1-W2=93 1.6kW? h-845.6kW？ h=86kW？ h，

Li Ming's family has to pay 86kW of electricity this month? H×0.5 yuan /kW? H=43 yuan.

According to the parameters on the electric energy meter, the working voltage is 220V and the calibration current is 5a, so p = UI = 220v× 5A =1100w;

(2) The electric energy consumed when the dial of the electric energy meter turns to 5R is:

W=52500kW？ h=0.002kW？ h；

The electric power of electrical appliances is:

P=Wt=0.002kW？ h360h=0.04kW=40W。

So the answer is: 43; 1 100; 0.002; 40.