. Определите стоимость электроэнергии, израсходованной пылесосом мощностью 500 Вт за 0,5 часа (тариф 15,5 тг за 1 кВт ? ч)​

Ответ:

To determine the cost of electricity consumed by a vacuum cleaner, we need to first calculate the energy used by the vacuum cleaner.

Energy used by the vacuum cleaner (in kilowatt-hours) = Vacuum cleaner power (in watts) x Time spent (in hours)

Energy consumed by the vacuum cleaner = 500 watts x 0.5 hours = 250 watt-hours = 0.25 kilowatt-hours

Now we can use this tariff in the amount of 15.5 tenge per 1 kilowatt-hour to calculate the cost of electricity consumed:

Cost of electricity consumed = Energy used by the vacuum cleaner x Tariff

The cost of electricity consumed = 0.25 kilowatt-hours x 15.5 tenge per kilowatt-hour = 3,875 tenge

Thus, the cost of electricity consumed by a vacuum cleaner with a capacity of 500 watts for 0.5 hours, at a tariff of 15.5 tenge per 1 kWh, is 3,875 tenge.