There will be a nonzero current in the circuit in Figure Q19.23. This current will carry electrons from one end of the resistor through the wire at the top to the positive terminal of the battery. We know that electrons always move from a region of low electric potential to a region of higher potential. We also know that an ideal wire has zero resistance, so there can be no potential drop across an ideal wire. Explain how to reconcile these two facts.
Figure Q19.23
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