# Question about the Microscopic Model of Current

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In summary, a uniform conductor is one with a constant conductance throughout, while a non-uniform conductor has varying conductance. A non-uniform conductor can have any geometry, while a uniform conductor is typically cylindrical. The presence of a non-uniform conductor can complicate things due to its varying conductance.
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Homework Statement
Relevant Equations
Why do they say uniform conductor?

Many thanks!

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Because a non-uniform conductor would significantly complicate things.

member 731016
Orodruin said:
Because a non-uniform conductor would significantly complicate things.

What's a non-uniform conductor? The textbook does not seem to define these 'uniform' or 'non-uniform' conductors.

Am I correct to say that a uniform conductor is cylindrical, while a non-uniform conductor can have any geometry as long as it is open at both ends.

Many thanks,
Callum

Orodruin said:
Because a non-uniform conductor would significantly complicate things.
Thanks for your reply @Orodruin ! How would a non-uniform conductor significantly complicate thing?

Many thanks!

Callumnc1 said:
What's a non-uniform conductor?
One in which the conductance varies from place to place within it.

member 731016
haruspex said:
One in which the conductance varies from place to place within it.
Thank you @haruspex !

## 1. What is the microscopic model of current?

The microscopic model of current is a scientific explanation for how electric current flows through a material at the atomic level. It is based on the movement of charged particles, such as electrons, within the material.

## 2. How does the microscopic model of current differ from the macroscopic model?

The macroscopic model of current focuses on the overall behavior of electric current in a material, while the microscopic model looks at the individual particles and their movements. The macroscopic model is more applicable to everyday situations, while the microscopic model is used for more detailed analysis and understanding.

## 3. What are the main components of the microscopic model of current?

The main components of the microscopic model of current are charged particles, such as electrons, a conducting material, and an electric field. The movement of these particles in response to the electric field is what creates the flow of current.

## 4. How does the microscopic model of current explain resistance?

The microscopic model of current explains resistance as the result of collisions between charged particles and the atoms of the conducting material. These collisions impede the movement of the particles, creating a resistance to the flow of current.

## 5. What are some real-world applications of the microscopic model of current?

The microscopic model of current is used in various fields, including electrical engineering, physics, and materials science. It is essential for understanding and designing electronic devices, such as transistors and microchips, and for developing new materials with specific electrical properties.

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