Question

A central air conditioner in a typical American home operates on a 220-V circuit and draws about 15 A

of current
a. Determine the power rating of such an air conditioner.
b. Determine the energy consumed (in kW.hr) if operated for 8 hours per day.
c. Determine the monthly cost (31 days) if the utility company charges 13 cents per kW.hr.

Answer 1

Find answers below.

Step-by-step explanation:

Given the following data;

Voltage = 220V

Current = 15 A

a. To find the power;

Power = current * voltage

Power = 15 * 220

Power = 3300 Watts

b. To find the energy;

Time = 8 hours = 60 * 60 * 8 = 28800 seconds

Energy = power * time

Energy = 3300 * 8

Energy = 26400

Energy = 26.4 Kwh

c. Cost = 13 cents

Cost = 13 * 31 * 26.4

Cost = 106392 cents