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AP Physics 2
11.6 Kirchhoff’s Loop Rule
11.5 Compound Direct Current (DC) Circuits
11.2 Simple Circuits
AdvancedMCQConceptual21.2k
Circuit schematic showing intended resistor network and accidental fault wire.
Circuit schematic showing intended resistor network and accidental fault wire.
An ideal battery with potential difference \(\Delta V_0\) is connected to four identical resistors, each of resistance \(R\), labeled \(R_1, R_2, R_3,\) and \(R_4\). In the intended circuit design, resistor \(R_1\) is connected in series with a parallel network consisting of two branches: one branch containing \(R_2\), and the second branch containing \(R_3\) and \(R_4\) in series. During assembly, an extra wire is accidentally connected between the positive terminal of the battery and the junction between \(R_3\) and \(R_4\). Which of the following claims correctly compares the actual current through resistor \(R_4\) to the intended design current, and provides the correct justification?

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