Does Pipe Diameter Affect Water Flow Rate?

In summary, there are two identical water circuits where water is pumped to high pressure and then funneled into a pipe with lower pressure, eventually returning to the pump. The only difference is that one circuit has pipes with a larger diameter than the other. The question asks which circuit will have a greater flow of water. The answer can be determined based on the given information, without needing to know the velocity.
  • #1
vachan
23
0
Consider the following water circuit: water is continually pumped to high pressure by a pump, and then funnelled into a pipe that has lower pressure at its far end (else the water would not flow through the pipe) and back to the pump. Two such circuits are identical, except for one difference: the pipes in one circuit have a larger diameter than the pipes in the other circuit. Through which circuit is the flow of water greater?


Small pipe
Large pipe

If they didnt tell me about the velocity, how am i going to know about this??
 
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  • #2
I suppose this is homework? They do give you enough information to answer it. Hint: Velocity itself is not the critical issue.
 
  • #3

it is important to have all the necessary information before making a conclusion or providing an answer. In this scenario, the flow of water would depend on the velocity of the water in each circuit. Without knowing the velocity, it is impossible to determine which circuit would have a greater flow of water. Additionally, other factors such as the length and material of the pipes could also affect the flow of water. Therefore, it is important to have a complete understanding of the system in order to accurately compare the flow of water in each circuit.
 

What is the electricity and water analogy?

The electricity and water analogy is a comparison often used to explain the flow of electricity in a circuit. It compares the flow of electrons in a circuit to the flow of water in a closed pipe system.

How does the electricity and water analogy work?

In the analogy, the voltage of the circuit is compared to the water pressure in a pipe, the current is compared to the flow rate of water, and the resistance is compared to the diameter and length of the pipe. Just as a change in water pressure or pipe diameter affects the flow rate of water, changes in voltage or resistance affect the flow of electrons in a circuit.

What are some limitations of the electricity and water analogy?

While the electricity and water analogy is a useful tool for understanding the basics of electricity, it is not a perfect comparison. For example, water flow is affected by gravity, while electrons flow due to electric fields. Additionally, water is a physical substance that can be seen and touched, while electrons are invisible. Therefore, the analogy should be used with caution and not taken too literally.

How is the electricity and water analogy helpful in understanding electricity?

The electricity and water analogy can be helpful in visualizing and understanding the concepts of voltage, current, and resistance in a circuit. It can also be used to explain more complex concepts such as parallel and series circuits. By comparing electricity to something more familiar like water, it can make the abstract concept of electricity easier to grasp.

Are there any other analogies for understanding electricity?

Yes, there are other analogies that can be used to explain electricity, such as the traffic analogy, where the flow of cars on a highway is compared to the flow of electrons in a circuit. The hydraulic analogy, which compares electricity to the flow of fluid in a system, is also commonly used. Each analogy has its own strengths and limitations, so it is important to use them in conjunction with a thorough understanding of the underlying scientific principles.

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