1 Determine the total cost of operating light bulb rated 100w when it is used for hours per day to one month, if the cost of electricity in your area is 0.50 Php per kWh
2. A hair dryer is rated at 1200W. How much electrical energy is dissipated by the dryer when it is used
for 5 minutes
3.The ceiling fan in Gusion's room is rated at 240 V, 70 W. (al How much energy does it consume in a
monine if it is being used for 5 hour per day? (b) How much will he pay for operating this ceiling fan
the cost of electricity on their area is 0.50 Php per kWh​