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if a 0.6 a light bulb powered by 120-v runs for a whole day, how many kilowatt-hours does it use in that day? note that 1.0 kwh



Answer :

The kilowatt-hours the light bulb ran for that day is 1.73 kilowatt-hours per day.

Briefing :

One Watt is the amount of work that is done in an electrical circuit when one ampere of current passes through a conductor with a one Volt electrical potential difference:

Power = Voltage * Current

1W = 1V * 1A

So from the question,

we have Current= 0.6A

Voltage= 120V

So to find out the Power,

we use Power = Voltage * Current

Power = 120*0.6

Power = 72W =[tex]\frac{72}{1000}[/tex] = 0.072 kW.

To find the kilowatt-hours in a day,

we consider the hours it ran which is 24 hours.

so,

0.072*24 =1.728 kWh =1.73 kilowatt-hours.

Therefore, the light bulb ran for 1.73 kilowatt-hours per day.

To know more about power visit :

https://brainly.com/question/20669010

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