A television (65W), a refrigerator (12KW) an electric kettle (6500) and ten lamps (40W each ) are connected in series. How much will the cost, the house keeper to switch on all the appliance for 12hrs daily in the month of june, if the cost of electricity is #5.00 per unit.
First, let's calculate the total power consumption of all the appliances connected in series:
Total power = TV + fridge + kettle + lamps
Total power = 65W + 12,000W + 6,500W + 10 x 40W
Total power = 12,125W
Next, let's calculate the total energy consumption for a day:
Total energy = Total power x time
Total energy = 12,125W x 12 hours
Total energy = 145,500 Wh or 145.5 kWh
For the month of June (30 days), the total energy consumption will be:
Total energy for the month = 145.5 kWh x 30 days
Total energy for the month = 4,365 kWh
Finally, let's calculate the cost:
Cost = Total energy x Cost per unit
Cost = 4,365 kWh x #5.00/kWh
Cost = #21,825
Therefore, the housekeeper will need to pay #21,825 to switch on all the appliances for 12 hours daily in the month of June.
I am so grateful for this, because I have really try a lot of method but I couldn't.
I am so happy
Thank you & GOD bless you .
Amen
You're welcome! I'm glad that I could help you. Don't hesitate to ask if you have any more questions in the future. Have a great day!
To calculate the cost of electricity for switching on all the appliances in series for 12 hours daily in the month of June, we need to determine the total power consumption in kilowatt-hours (kWh) and then multiply it by the cost per unit.
1. Convert the power ratings from watts to kilowatts (kW):
TV: 65W ÷ 1000 = 0.065kW
Refrigerator: 12KW (already in kilowatts)
Electric kettle: 6500W ÷ 1000 = 6.5kW
2. Calculate the power consumption of the lamps:
Total power consumption of lamps = Power per lamp × Number of lamps
Total power consumption of lamps = 40W × 10 lamps = 400W
Since the lamps are connected in series, their power consumption remains the same.
3. Calculate the total power consumption:
Total power consumption = TV + Refrigerator + Electric kettle + Lamps
Total power consumption = 0.065kW + 12kW + 6.5kW + 0.4kW
Total power consumption = 18.965kW
4. Calculate the energy consumption for the month of June:
Energy consumption = Total power consumption × Daily usage × Number of days in June
Energy consumption = 18.965kW × 12 hours/day × 30 days
Energy consumption = 6,857.4 kWh
5. Calculate the cost of electricity:
Cost of electricity = Energy consumption × Cost per unit
Cost of electricity = 6,857.4 kWh × ₦5.00/kWh
Cost of electricity = ₦34,287.00
Therefore, the cost for the housekeeper to switch on all the appliances for 12 hours daily in the month of June would be ₦34,287.00.