Is the watt-hour meter recorded by Xiao Ning at the beginning of the month 88 1.6kW? H, as shown in the end of May, his household electricity consumption this month is _ _ _ _ J.

Test analysis: As can be seen from the figure, the reading at the end of the month is 93 1.6 kW? H, and the index at the beginning of the month is 88 1.6kW? H, his household electricity this month is 93 1.6 kW? h-88 1.6kW？ h=50kW？ h = 1.8× 108j； Two resistance wires with the same resistance value are connected in series first, and then connected in parallel. The total resistance in series is twice that of a resistor, the total resistance in parallel is 1/2 times that of a resistor, and the resistance after series is four times that after parallel. They are respectively connected to the same power supply. According to p = u 2/r, the power after series connection is 1/4 after parallel connection, so boil the same pot of water (assuming