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AP Physics 2
11.3 Resistance, Resistivity, and Ohm’s Law
IntermediateMCQConceptual16.6k
A schematic diagram of a parallel circuit with an ideal constant voltage source labeled V_0 on the vertical left wire segment. The circuit extends to the right and splits into two horizontal parallel branches that pass into a rectangular box outlined by a dashed line labeled 'Temperature Chamber'. The top branch contains a rectangular resistor symbol labeled 'Metallic conductor'. The bottom branch contains a rectangular resistor symbol labeled 'Semiconductor sensor'. Plain solid lines connect the components into closed loops. No other labels, lines, text, or symbols appear.
Metallic conductor and semiconductor connected in parallel inside a temperature-controlled chamber.
A metallic conductor and a semiconductor sensor are connected in parallel across an ideal voltage source maintained at a constant potential difference \(V_0\). The entire system is placed inside a temperature-controlled chamber. As the temperature inside the chamber increases, the current through the metallic conductor decreases. Which of the following claims correctly predicts the change in current through the semiconductor sensor as temperature increases and provides a correct microscopic justification?

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