Question

find the energy in kW h consumed in 10 hours by 4 devices of power 500 w each​

Answer 1

Power of 1 device = 500 W

Power of 4 device= 4 × 500 W

                              = 2000 W

Time is was used= 10 Hrs.

p = w÷t

w =p × t

w = 2000 × 10

w = 20000 Joules or Watt hour

w = 20000 ÷ 1000 kW h

w = 20 kW h

Answer 2

Answer

Power of 1 device = 500 W

Power of 4 device = 4x500W

= 200W

The time was used = 10 Hrs

p=w/t

w=pxt

w=2000x10

w=20000 Joules or Watthour

w=20000/100 kw h

w=20 kw h

I hope it may help you!!!!!!!!!!!!!!!!!