. An air conditioner uses 1,800 W of power when plugged into a wall socket that operates at a voltage of 210 V. What is the curr ent flowing through the air conditioner? If the air conditioner above were run for 180 hours per month, how much energy is used? If it costs $0.12/kWh, how much will it cost to run the air conditioner?
1 answer:
Answer:
Explanation:
Given that:
Power, P = 1800W
Voltage, V = 210 V
Current, I flowing through the air conditioner;
Recall :
P = IV
1800 = I * 210
I = 1800 / 210
I = 8.5714
Current flowing through the air conditioner = 8.57 ampere
If air-conditioner runs for 180 hours per month,
Energy used = Power * time
Energy used = 1800 * 180
Energy used = 324000Wh
1Kw = 1000 W
324000 / 1000 = 324 Kwh
If charge = $0.12 per kwh
Monthly cost = $0.12 * 324
Monthly cost = $38.88
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