Question

Choose the COST tab and check that 1 day is selected. Set the Cost of electricity to 10.0 ¢/kWh. The daily cost is equal to the daily consumption (in kilowatt-hours) multiplied by the cost per kilowatt hour (¢/kWh). What is the daily cost of an incandescent lamp?

Answer 1

Daily Cost = 24 ¢

Step-by-step explanation:

Consider a typical incandescent bulb having a power rating of 100 W. Now, we calculate the daily consumption by multiplying the Power with time:

Daily Consumption = (Power Rating)(Time in hours)

Daily Consumption = (0.1 KW)(24 h/1 day)

Daily Consumption = 2.4 KWh

Now, we will calculate the daily cost of the incandescent lamp by multiplying the daily consumption with the unit cost.

Daily Cost = (Daily Consumption)(Unit Cost)

Daily Cost = (2.4 KWh)(10 ¢/KWh)

Daily Cost = 24 ¢