Power is the rate of doing work. Power (in watts) = work done(in joules)/ time (in seconds)PFY, p. 120
1 watt is a rate of working of one joule per second.
13) p= e/t 5=p/1000= 5000 W p= 1000/5 p= 200
14) p= e/t p= 600/6 p= 100w
15) p = e/t p= 30000/4 p=7500 w
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