The Cost of Your Electric Bill

1. A 50-inch flat screen TV uses 100 Watts of power and is plugged into a 120 V outlet.
   1. How much current does the TV draw?
   2. How much energy is used by the TV if you have it on for 4 hours a day for a month (30 days)?
   3. If the electric company charges $0.085 per KW*hr, what is the cost of using your TV?
   4. The bill is about doubled due to taxes and fees, what is the cost to your bill?

1. The microwave is 1000 W and plugged into a 120 V outlet.
   1. If you use it for an average of 10 minutes a day, how much energy does the microwave use in a year?
   2. If the electric company charges $0.09 per KW*hr., what is the cost of using your TV?
   3. The bill is about doubled due to taxes and fees, what is the cost to your bill?

1. A 7.5 W LED lightbulb produces the same amount of light as a 60 W traditional light bulb.If you were to leave the bulb on for an average of 4 hours a day.
   1. Find the energy used by each over an entire year.
   2. If the electric company is charging $0.085 per KW*hr., how much do you save by using the LED light?
   3. The bill is about doubled due to taxes and fees, what is the actual savings?

1. A string of Christmas lights on the tree is a total of 75 W. You need two strings to completely light the tree. The lights are on from 4:00 pm until 11:00 pm every day in December. How much extra does having a Christmas tree add to your electric bill? Remember the bill is about doubled due to taxes and fees.

1. In the summer the electric bill goes up because of using the air conditioner. A central air conditioning system is 3500 W. You use the system an average of 10 hours a day for June, July, and August (92 days) and the cost of electricity is $0.08.How much does the air conditioning cost for the summer? Remember the bill is about doubled due to taxes and fees.