Question

You leave your 50 W portable color TV on for 5 hours each day and you do not pay attention to the cost of electricity. If the dorm (or your parents) charged you for your electricity use and the cost was $0.1 /kW · h, what would be your monthly (30 day) bill? Answer in units of dollars.

Answer 1

Total cost will be $0.75

Step-by-step explanation:

We have given power of the TV = 50 watt

It is given that each day TV is used for 5 hour

And we have to find the cost of energy for 1 month

So total number of hour in 1 month = 30×5 = 150 hour ( 1 month = 30 days given )

We know that energy is given by

`Energy=power* time`

So energy will be
`Energy=50* 150=7500watt-hour=7.5Kw-hour`

Cost is given as $0.1 /kw-hour

So total cost will be = 0.1×7.5 =$ 0.75