Question

find the energy in KWH consumed in 10h by four devices of power 500W each​

Answer 1

Hey Pretty Stranger!

• Power of one device = 500 W

→ Power of four devices = 500 × 4

→ Power of four devices = 2000 W i.e. 2 kW

• Time = 10 h

$\bigstar \: \boxed{\sf\: Power = \dfrac{Energy \: consumed}{Time \: taken}}$

→ 2 kW = $\sf\dfrac{Energy\: consumed}{Time\: taken}$

→ Energy Consumed = 2 kW × 10 h

→ Energy Consumed = 20 kWh

$\therefore$ Energy consumed is 20 kWh or 20 units.

Answer 2

Answer: 5kWh  

Explanation:    

Energy consumed = Power x Time = 500 W x 10 h = 5000Wh = 5kWh.

1 device = 5kWh  

4 devices = 20kWh

Hence, the amount of energy in kWh is consumed in 10h by 4 devices of power 500W​ is 20kWh.

 Hope it helps!  

(Brainliest)