Does the Electric Field Change in Different Metals of a Circuit?

AI Thread Summary
In a circuit with different metals like copper and gold, the electric field will indeed vary between the two materials, even if they share the same dimensions. The current remains constant throughout the circuit, but the resistance differs due to the distinct properties of each metal. Consequently, this leads to variations in voltage across each segment, resulting in different electric fields within the wires. Understanding these differences is crucial for grasping how electric fields and current interact in conductive materials. The relationship between resistance, voltage, and electric field is fundamental in circuit analysis.
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So I'm learning about how applied electric field causes current in a wire.. I'm confused about one thing. If you have a wire connected to a battery.. and let's say for the first "half" of the circuit the wire is made of copper and the second half is the wire is made of gold... will the electric field be different in these two materials even if they have the same dimensions? Because that's the only way I can see the current staying the same.
 
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Yes. The current is the same, the resistance of the two pieces of wire are different, so both the voltage across them and the electric field inside them are different.

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