The output energy of a 100 W toaster can be calculated using the formula:
Output Energy (in watt-hours) = Power (in watts) x Time (in hours)
Given that the toaster has a power rating of 100 W, let's calculate the output energy for different time periods:
Output energy for 1 hour: Output Energy = 100 W x 1 hour = 100 watt-hours
Output energy for 30 minutes (0.5 hours): Output Energy = 100 W x 0.5 hours = 50 watt-hours
Output energy for 15 minutes (0.25 hours): Output Energy = 100 W x 0.25 hours = 25 watt-hours
So, a 100 W toaster will consume 100 watt-hours of energy if used continuously for 1 hour. If used for a shorter time, the output energy will be proportionally lower.