Suppose we connect the terminals of battery $A$ with a single uniform wire with a certain length. Suppose we connect the terminals of an identical battery $B$ with a single uniform wire with the same length and diameter but a lower conductivity. Specify whether each of the following quantities is $(A)$ greater in the circuit connected to battery $A,(B)$ greater in the circuit connected to battery $B$, or (C) the same in both circuits.
-(a) The electric field magnitude $|\vec{E}|$ inside the wire
A) A
B)B
C)C

Question

Quizplus · Accepted Answer

The electric field magnitude $|\vec{E}|$ inside a conductor is determined by the potential difference across it and its length, not by its conductivity. Since both wires are connected across identical batteries and have the same length, the electric field magnitude inside them will be the same, regardless of their conductivity differences.

Suppose We Connect the Terminals of Battery AAA With a Single Uniform Wire with a Certain Length

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