Question

Какова стоимость электроэнергии, расходуемой электрическим утюгом мощностью 600 Вт за 40 мин непрерывной работы, если тариф электроэнергии 500р/ кВт * ч?

Answer 1

E = P * t 

P - мощность ( 600 Вт )
t - время ( 40 мин = 0,6 ч )

E = 600 * 0,6 = 360 Дж = 0,36 кДж * 500 р = 180 р 

Answer 2

Calculation of the Cost of Electricity Consumed by an Electric Iron

To calculate the cost of electricity consumed by an electric iron, we need to consider the power rating of the iron and the duration of its operation, as well as the tariff rate for electricity.

Given: - Power rating of the electric iron: 600 Watts - Duration of continuous operation: 40 minutes - Tariff rate for electricity: 500 rubles per kilowatt-hour (kWh)

To calculate the energy consumed by the electric iron, we can use the formula:

Energy (in kilowatt-hours) = Power (in kilowatts) x Time (in hours)

Converting the power rating of the electric iron to kilowatts:

Power (in kilowatts) = Power (in watts) / 1000

Substituting the given values into the formula:

Power (in kilowatts) = 600 Watts / 1000 = 0.6 kilowatts

Time (in hours) = 40 minutes / 60 = 0.67 hours

Energy (in kilowatt-hours) = 0.6 kilowatts x 0.67 hours = 0.402 kilowatt-hours

Now, to calculate the cost of electricity consumed, we can multiply the energy consumed by the tariff rate for electricity:

**Cost of electricity consumed = Energy (in kilowatt-hours) x Tariff rate (in