A Computer power supply states to be of 450 Watt. At house voltage of 220V How much will it consume electric units (KWH) in 30 days it it is used 3 hrs per day?
This is a numerical...
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Answered by
1
Answer:
If John uses a window fan (200 watts) 4 hours a day for 120 days per year, how much does it cost him to run his fan per year?
200 X 4 X 120 = 96 kWh
1000
96 kWh X 8.9 Cents/kWh = $8.16 per year
Answered by
1
Answer:
The answer will be 40.5 kW/hrs.
Explanation:
Given;
Power consumed (in kW) = 0.45 kW
Potential difference = 220 V
Total time (in hour) = 30 × 3 = 90 hours
Electric unit consumed in 30 days will be;
= Power × time
= 0.45 × 90
= 40.5 kW/hrs.
That's all.
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