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AP Physics 2
11.5 Compound Direct Current (DC) Circuits
BeginnerMCQConceptual23.9k
Circuit schematic with a voltmeter connected across Resistor 2.
Circuit schematic with a voltmeter connected across Resistor 2.
A student constructs a circuit consisting of an ideal battery connected in series with two resistors, designated as Resistor \(1\) and Resistor \(2\). To measure the potential difference across Resistor \(2\), the student connects a voltmeter in parallel across Resistor \(2\). The student observes that connecting the voltmeter does not noticeably change the current measured anywhere else in the circuit. Which of the following best explains why the current in the circuit remains unchanged?

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