Question

Физика. По братски 8 класс. Практическая работа рассчитать стоимость электроэнергии за неделю и сколько потратилось энергии. Трёх Возный счётчик.

Answer 1

А самому не??Нужно уроки учить!

Answer 2

Practical Work: Calculating the Cost of Electricity for a Week

To calculate the cost of electricity for a week and the amount of energy consumed, we will need to consider the power consumption recorded by the three-phase electricity meter and the cost of electricity per unit.

Power Consumption and Cost of Electricity

To calculate the cost of electricity, we need to know the power consumption and the cost per unit of electricity. The formula for calculating the cost of electricity is:

Cost of electricity = Power consumption (in kWh) × Cost per unit (in currency/kWh)

Power Consumption Calculation

The power consumption can be calculated by subtracting the initial reading from the final reading of the three-phase electricity meter. Let's assume the initial reading is X kWh and the final reading is Y kWh. The power consumption for the week can be calculated as:

Power consumption = Y - X kWh

Cost of Electricity Calculation

Once we have the power consumption for the week, we can calculate the cost of electricity using the formula mentioned earlier.

Example Calculation

Let's assume the power consumption for the week is 100 kWh and the cost per unit of electricity is $0.15/kWh. Using the formula, the cost of electricity for the week would be:

Cost of electricity = 100 kWh × $0.15/kWh = $15

Conclusion

By following these steps and using the recorded power consumption and the cost per unit of electricity, you can calculate the cost of electricity for a week and determine the amount of energy consumed.

Feel free to provide the specific power consumption readings and the cost per unit of electricity, and I can help you with the calculations based on those values.