2. The surface of an electric energy meter is marked with 3000r / kWh. If there are several 100W electric lamps in this circuit, observe the turntable and measure that the turntable has turned 50 revolutions in 5 minutes. If the switch is not opened or closed during this period, it will turn 50 revolutions in this period______ Two lights are used at the same time Is there an analysis process

2. The surface of an electric energy meter is marked with 3000r / kWh. If there are several 100W electric lamps in this circuit, observe the turntable and measure that the turntable has turned 50 revolutions in 5 minutes. If the switch is not opened or closed during this period, it will turn 50 revolutions in this period______ Two lights are used at the same time Is there an analysis process

The energy in this period is x = (50 / 3000) kwh, while the energy of an electric lamp in this period is y = 100 * 5 * 60j, and the final result is x / y = 2

The dial of an electric meter is marked with "3000r / kWh". When an electric appliance is started individually, the meter turns 5 circles in 100 seconds, and the electric appliance's public green is "3000r / kWh"?

If the power consumption is 1 / 600kwh = 6000J for 5 cycles, then the power P = w / T = 6000 / 100 = 60W (watt)

Xiaoming's electricity meter is marked with "3000r / kW · H"
How many joules of electricity does the dial consume in one revolution?
If the meter runs 450 revolutions and takes half an hour (the speed remains unchanged), how much energy is consumed in 4 hours?
It is known that the vehicle can run for 0.85km. How many kilometers can the vehicle run?

3000r / kW · h means the consumption of 1kW · h electric energy turns to 3000r
Then the power consumption for one revolution is 1 / 3000kW · H
The power consumption is 450 / 3000 = 0.15kw · H
Electric energy consumption in four hours is 0.15 × 8 = 1.2kW · H
One kilowatt hour (1kW · h) can drive 0.85km
Then 1.2kW · h electric energy can power the vehicle to drive 0.85 × 1.2 = 1.02km