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AP Physics 2
11.7 Kirchhoff’s Junction Rule
11.6 Kirchhoff’s Loop Rule
11.5 Compound Direct Current (DC) Circuits
IntermediateMCQProportional AnalysisConceptual14.1k
A circuit containing three resistors and a switch.
A circuit containing three resistors and a switch.
A circuit consists of an ideal battery with emf \(\varepsilon\) connected to a resistor \(R_1\) in series with a parallel combination of a resistor \(R_2\) and a branch containing a resistor \(R_3\) and a switch \(S\). Initially, the switch is open. The switch is then closed. Which of the following correctly describes the changes in the total current \(I_{total}\) provided by the battery and the potential difference \(V_1\) across resistor \(R_1\)?

Total Current \(I_{total}\)Potential Difference \(V_1\)
(A)DecreasesDecreases
(B)IncreasesDecreases
(C)IncreasesIncreases
(D)DecreasesIncreases

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