Answers

2016-04-06T17:20:01+05:30
given : 
power = 60 W 
time = 30 minutes 

need to find out : 
the electrical energy consumed. 

solution : 
now for the time we need to convert the minutes in to second 
⇒ 30 minutes = 1800 seconds. 
power = energy consumed × time taken  
⇒ 60 × 1800 
⇒ 108000 J 
∴ the electrical energy consumed by the toaster in joules = 108000 J
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