Answer :
To determine how much energy the microwave consumes, you need to understand what the power rating means. A microwave with a power rating of 900 watts uses energy at the rate of 900 joules per second. This is because:
- 1 watt equals 1 joule per second.
Given that the microwave is rated at 900 watts, it consumes energy at 900 joules every second.
Therefore, the correct answer is:
C. 900 joules per second
- 1 watt equals 1 joule per second.
Given that the microwave is rated at 900 watts, it consumes energy at 900 joules every second.
Therefore, the correct answer is:
C. 900 joules per second