Does the length of a resistor affect the strength of its electric field?

AI Thread Summary
Resistors do have electric fields inside them, which are generated by the accumulation of charges at their endpoints. The potential difference across a resistor is directly related to this electric field. The length of the resistor can be factored into calculations using the equation V=Ed to determine the electric field strength. This indicates that the electric field exists within the resistor rather than solely along its surface. Understanding these concepts is crucial for analyzing circuits involving resistors.
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Homework Statement


Do resistors have electric fields inside them? I'm confused because we never say voltage IN resistors. So I was wondering if charges are moving in a circuit with a resistor, would the flow of charge create E fields along the surface of resistors rather than inside?

Homework Equations

The Attempt at a Solution

 
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Yes, they do. Voltage ( better to say potential difference) is always caused due to accumulation of charges. The potential difference across a resistor is due to the electric field inside it, which is caused by accumulation of charges at its end points.
 
CrazyNinja said:
Yes, they do. Voltage ( better to say potential difference) is always caused due to accumulation of charges. The potential difference across a resistor is due to the electric field inside it, which is caused by accumulation of charges at its end points.
So if a resistor had length L, I could use the V=Ed equation to obtain the E field?
 

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