High School

A television set consumes electrical energy at a rate of 100 watts and is used for 6 hours in a day. Calculate the units of energy consumed by the television set in a day.

Answer :

Final answer:

The television set, with a power consumption of 100W, consumes 0.6 units of electrical energy (in kWh) in a day (6 hours of use). This is calculated using the formula E = Pt after converting watts to kilowatts.

Explanation:

The subject of your question pertains to the calculation of electrical energy consumption, measured in kilowatt-hours (kWh). The calculation can be done using the Electricity formula E = Pt, where E is the energy consumed, P is the power input (in kilowatts), and t is the time (in hours).

In this case, the television set has a power consumption of 100W or 0.1kW (since 1 kilowatt = 1000 watts) and it's used for 6 hours a day. Hence, by substituting these values into the formula, we get E = (0.1 kW) * (6 hours) = 0.6 kWh.

So, the television set consumes 0.6 units of electrical energy (in kWh) in a day when used for six hours. Keep in mind that the units of measurement are important when performing these calculations. Always ensure to convert watts to kilowatts before calculating energy consumption in kWh.

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