Question

Find the energy in kwh consumed in 10 hours by four devices of power 500 w each

Answer 1

Energy = power / time..
so answer is 500/10=50....
Hope you understand ..
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Answer 2

Hey there!

Given,

Power ( P) = 500 W =0.50 kW

Time (t) = 10 h

We know,

Work done = Energy consumed.

Power = work done / time

0.50 = Energy consumed / 10

Energy consumed  = 0.50 * 10 = 5 kWh

Now,

Energy consumed by four devices = 4 * 5 = 20 kWh.

Good day!