Question

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?

The formula is E=Pt

Answer 1

`E = 233.bar33 Wh`

Explanation:

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`.