What actually causes 'resistance'?
Understand the Problem
The question is asking about the factors that cause electrical resistance in conductors. It is focused on understanding the underlying principles of resistance in electrical systems, including how various aspects like wire length, thickness, material, and temperature influence resistance.
Answer
Resistance is caused by electron collisions with atoms and impurities.
Resistance is caused by collisions between electrons and atoms, as well as impurities and defects within the conductor material, which result in a hindrance to the flow of electric current.
Answer for screen readers
Resistance is caused by collisions between electrons and atoms, as well as impurities and defects within the conductor material, which result in a hindrance to the flow of electric current.
More Information
Resistance in electrical conductors is essential for controlling and managing the flow of electric current within circuits, enabling devices to function properly.
Tips
A common misunderstanding is thinking that resistance is solely due to impurities; however, even pure materials exhibit resistance due to electron-atom collisions.
Sources
- What causes electrical resistance? - quora.com
- What is Resistance? - Fluke Corporation - fluke.com
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