Computers and Technology, 23.04.2020 20:36 alicegirl5133

A computer with a 240-watt power supply is connected to a 120 V circuit and is left on continuously for one month (31 days). How much current does it draw? What is the resistance of the computer? How much energy does the computer use if it does not enter a power save mode? If electricity costs $0.11/kW hr, how much does it cost to leave the computer on for a month?

Answers: 3

Show answers

Answers

A load has resistance and this is measured in ohms. Every electrical device or load has resistance. Resistance is like a restriction to the flow of electrons and electricity is dissipated as heat energy in a resistance. For a fixed voltage applied to a load, the higher the resistance, the lower the current. Going back to the water analogy, when you stand on a hose, you increase the resistance and restrict the flow. The only way to restore the flow is by getting the pump to pump harder, and force water through the restriction, i.e. the pump needs to have a higher pressure. Alternatively if you take your foot off the hose, you increase the diameter and lower the resistance and more water can be forced through. In an electrical circuit, if the voltage is increased, more current is forced through the resistance. If the resistance is lowered, more current will flow even if the voltage doesn't change. Even connecting wires in a circuit have resistance, so when high currents need to be carried by a cable, it needs to have a sufficiently large diameter and cross sectional area (CSA) to avoid overheating.

Explanation: There is adherence to the Newton laws

Answer from: Quest

Answer: this depends on the amount required to pay off the individual's card as well as how large the minimum payments are.if the amount is significantly large and the minimum payments are significantly small, then it will take a longer time to pay off the credit card.if the amount is significantly small and the minimum payments are significantly large, then it will take less time to pay off the credit card.hence, it would be difficult to answer true or false to this statment.however, for the purpose of this statement, it is most likely assumed that regardless of the amount to pay off the credit card the minimum payments would be quite large.therefore, the better option would be to pick 'true' as your answer.hope this ! : )have a lovely day! < 3

Answer from: Quest

Binary code is the right answer

Another question on Computers and Technology

Computers and Technology, 22.06.2019 22:50

Assume the existence of a bankaccount class. define a derived class, savingsaccount that contains two instance variables: the first a double, named interestrate, and the second an integer named interesttype. the value of the interesttype variable can be 1 for simple interest and 2 for compound interest. there is also a constructor that accepts two parameters: a double that is used to initialize the interestrate variable, and a string that you may assume will contain either "simple", or "compound", and which should be used to initialize the interesttype variable appropriately. there should also be a pair of functions getinterestrate and getinteresttype that return the values of the corresponding data members (as double and int respectively).

Answers: 2

Answer

Computers and Technology, 24.06.2019 19:50

Which is a characteristic of free and open-source software licenses? a. the source code is unavailable to everyone b. the source code is available only to the government c. the source code is available to all users d. the source code is constantly modified

Answers: 1

Answer

Computers and Technology, 25.06.2019 03:30

Which task should happen during the planning stage of a project

Answers: 2

Answer

Computers and Technology, 25.06.2019 05:00

How does computer network work in a paragraph

Answers: 1

Answer

You know the right answer?

A computer with a 240-watt power supply is connected to a 120 V circuit and is left on continuously...