Question on: JAMB Physics - 2024
A particular household utilizes three electrical appliances for six hours daily if the appliances are rated 80 W, 100 W, and 120 W respectively. Calculate the electrical bills paid monthly if an average month is 31 days. [1 kWh = ₦24.08]
A
₦ 2843.22k
B
₦ 1950.22k
C
₦ 1343.66k
D
₦ 46.23k
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Correct Option: C
Here's how to solve the problem step-by-step:
- Calculate the total power consumption of the appliances: Total power = 80 W + 100 W + 120 W = 300 W
- Convert to kilowatts (kW): 300 W / 1000 = 0.3 kW
- Calculate the daily energy consumption: Daily energy = 0.3 kW x 6 hours = 1.8 kWh
- Calculate the monthly energy consumption: Monthly energy = 1.8 kWh x 31 days = 55.8 kWh
- Calculate the monthly bill: Bill = 55.8 x ₦24.08 ≈ ₦1343.66
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