Question

Мощность телевизора 102 Вт. Он работает 8 часов. Вычисли, сколько кВт⋅ч электроэнергии израсходовал телевизор? Телевизор израсходовал кВт⋅ч электроэнергии (результат округли до сотых)

Answer 1

P=102 Вт=0.102 кВт; t=8 ч
A=0.102*8=0.816≈0.82 кВт*ч

Answer 2

Calculation of Energy Consumption by the Television

To calculate the amount of electrical energy consumed by the television, we need to multiply its power (in watts) by the number of hours it operates.

Given: - Power of the television: 102 W - Operating time: 8 hours

To calculate the energy consumption in kilowatt-hours (kWh), we can use the following formula:

Energy consumption (kWh) = (Power (W) * Operating time (hours)) / 1000

Substituting the given values into the formula:

Energy consumption (kWh) = (102 W * 8 hours) / 1000

Now, let's calculate the result:

Energy consumption (kWh) = (816 W * hours) / 1000

Using a calculator, we find that the television consumed approximately 0.82 kWh of electrical energy.

Please note that the result has been rounded to the nearest hundredth as requested.