1.

A fan, rated 50 W , uses 90 000 J of electrical energy. How long was the fan switched on? *

Answer»

1800 seconds or 30 minutes Explanation:power= work / time therefore, time=work / power           i.e., time = 90000/50                          = 1800 seconds                          = 30 minutes HOPE it helped you If yes, then plz MARK me as the BRAINLIEST thank you



Discussion

No Comment Found

Related InterviewSolutions