Question

an electric bulb of 200w is used for 6 hours a day calculate the energy consumed by it in a day in joules and kilowatt hour unit​

Answer 1

Answer:

Yes what Sean said. a 100 W bulb uses 110W/hr of power in an hour. This is how you get watt/hours from watts. then you are using it for 6 hours a day and one hour uses 100 watt hours so 6 hours 600 watt hours of power each day, * 30 days and you have the answer below. except that larger amounts of power are give in kilo watt hours so you take your watt hours and divide it by 1000 to change watt hours to kilowatt hours