The formula E=Pt gives the energy, E watt hours, used when an electrical appliance of power P watts is used for t hours. What is the energy used in this situation: A 1400-W blow dryer is used for 10 min?

Question

The formula is E=Pt

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Answer 1 · 2017-12-15T06:28:00

#E = 233.bar33 Wh#

E = Pt

Given :
P =1400W
and
t = 10 minutes= #10/60# hours = #1/6 #hour.

#therefore # E = P t = #1400 xx 1/6#

#E = 233.bar33 Wh#.