Quiz about 9.03 Cálculos de Electricidad de Electrodomésticos

Question 1

Use the following formula to find the annual cost of the following appliances. The energy cost is $0.099 per kWh. $$E \left( \frac{kWh}{day} ight) = \frac{P(w) imes \left( \frac{h}{day} ight)}{1000 \left( \frac{W}{kw} ight)}$$ 1. A dishwasher that uses 1,800 watts and runs for 1.5 hours per day. __________

Accepted Answer

$97.11

Answer

$150.00

Answer

$120.00

Answer

$80.00

Question 2

Use the following formula to find the annual cost of the following appliances. The energy cost is $0.099 per kWh. $$E \left( \frac{kWh}{day} ight) = \frac{P(w) imes \left( \frac{h}{day} ight)}{1000 \left( \frac{W}{kw} ight)}$$ 2. A radio that uses 100 watts and operates for 12 hours per day.

Accepted Answer

$43.38

Answer

What is the annual cost of operating a radio that uses 100 watts and operates for 12 hours per day?

Answer

$50.00

Answer

$35.00

Answer

$60.00

Question 3

Use the following formula to find the annual cost of the following appliances. The energy cost is $0.099 per kWh. $$E \left( \frac{kWh}{day} ight) = \frac{P(w) imes \left( \frac{h}{day} ight)}{1000 \left( \frac{W}{kw} ight)}$$ 3. A freezer that uses 500 watts and runs for 24 hours per day.

Accepted Answer

$432.18

Answer

What is the annual cost of a freezer that uses 500 watts and runs for 24 hours per day?

Answer

$365.00

Answer

$500.00

Answer

$450.00

Question 4

Use the following formula to find the annual cost of the following appliances. The energy cost is $0.099 per kWh. $$E \left( \frac{kWh}{day} ight) = \frac{P(w) imes \left( \frac{h}{day} ight)}{1000 \left( \frac{W}{kw} ight)}$$ 4. A microwave that uses 1,500 watts and operates for 0.25 hours per day.

Accepted Answer

$13.54

Answer

What is the annual cost of operating a microwave that uses 1,500 watts and operates for 0.25 hours per day?

Answer

$20.00

Answer

$8.00

Answer

$10.00

Question 5

Use the following formula to find the annual cost of the following appliances. The energy cost is $0.099 per kWh. $$E \left( \frac{kWh}{day} ight) = \frac{P(w) imes \left( \frac{h}{day} ight)}{1000 \left( \frac{W}{kw} ight)}$$ 5. An oven that uses 2,000 watts and operates for 1 hour per day.

Accepted Answer

$72.27

Answer

$50.00

Answer

$100.00

Answer

$90.00

Question 6

Use the following formula to find the annual cost of the following appliances. The energy cost is $0.099 per kWh. $$E \left( \frac{kWh}{day} ight) = \frac{P(w) imes \left( \frac{h}{day} ight)}{1000 \left( \frac{W}{kw} ight)}$$ 6. A washing machine that uses 1,150 watts and operates for 1 hour per day.

Accepted Answer

$41.54

Answer

What is the annual cost of operating a washing machine that uses 1,150 watts and operates for 1 hour per day?

Answer

$50.00

Answer

$30.00

Answer

$60.00

Question 7

Use the following formula to find the annual cost of the following appliances. The energy cost is $0.099 per kWh. $$E \left( \frac{kWh}{day} ight) = \frac{P(w) imes \left( \frac{h}{day} ight)}{1000 \left( \frac{W}{kw} ight)}$$ 7. A coffee maker that uses 1,500 watts and operates for 1 hour per day.

Accepted Answer

$54.23

Answer

$40.00

Answer

$60.00

Answer

$45.00

Question 8

Use the following formula to find the annual cost of the following appliances. The energy cost is $0.099 per kWh. $$E \left( \frac{kWh}{day} ight) = \frac{P(w) imes \left( \frac{h}{day} ight)}{1000 \left( \frac{W}{kw} ight)}$$ 8. A hair dryer that uses 1,200 watts and operates for 0.5 hours per day.

Accepted Answer

$21.71

Answer

What is the annual cost of operating a hair dryer that uses 1,200 watts and operates for 0.5 hours per day?

Answer

$25.99

Answer

$18.00

Answer

$30.00

Question 9

Use the following formula to find the annual cost of the following appliances. The energy cost is $0.099 per kWh. $$E \left( \frac{kWh}{day} ight) = \frac{P(w) imes \left( \frac{h}{day} ight)}{1000 \left( \frac{W}{kw} ight)}$$ 9. A water heater that uses 5,500 watts and operates for 24 hours per day.

Accepted Answer

What is the annual cost of operating a water heater that uses 5,500 watts and operates for 24 hours per day?

Answer

$475.89

Answer

$550.00

Answer

$480.12

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