Question

An electric bulb consuming 100watt runs for one minute. What energy consumed by it?

Answer 1

Answer:

Energy consumption is commonly measured in kilowatt-hours (kWh).

Here's the formula: watts x hours = watt-hours. 1000 watt-hours = a kilowatt-hour.

So your 100 watt light bulb on for a minute is:

100 watts / 60 minutes per hour = 1.667 watt-hours or 0.001667 kilowatt-hours.

If you left that 100 watt bulb on for 10 hours, it would consume a whole kilowatt-hour.