Find the energy in kWh consumed in 10 hours by four devices of power 500 W each.
Question
Find the energy in kWh consumed in 10 hours by four devices of power 500 W each.
Solution
To find the energy consumed in kWh, we can use the formula:
Energy (kWh) = Power (kW) x Time (hours)
First, let's convert the power of each device from watts to kilowatts:
Power (kW) = Power (W) / 1000
For each device, the power is 500 W, so:
Power (kW) = 500 W / 1000 = 0.5 kW
Since there are four devices, we need to multiply the power by 4:
Total Power (kW) = 0.5 kW x 4 = 2 kW
Now, we can calculate the energy consumed in kWh by multiplying the total power by the time:
Energy (kWh) = Total Power (kW) x Time (hours)
Given that the time is 10 hours:
Energy (kWh) = 2 kW x 10 hours = 20 kWh
Therefore, the energy consumed in 10 hours by four devices of power 500 W each is 20 kWh.
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