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AP Physics 2
11.6 Kirchhoff’s Loop Rule
11.5 Compound Direct Current (DC) Circuits
11.4 Electric Power
11.3 Resistance, Resistivity, and Ohm’s Law
AdvancedMCQMathematicalConceptual20.7k
Circuit schematic with a non-ideal battery and resistor network.
Circuit schematic with a non-ideal battery and resistor network.
A non-ideal battery with electromotive force \(\varepsilon\) and internal resistance \(r\) is connected to a circuit containing a resistor \(R_1\) in series with a parallel combination of two identical resistors, \(R_2\) and \(R_3\). Switch \(S\) is initially open. When switch \(S\) is closed, a third identical resistor \(R_4\) is connected in parallel with \(R_2\) and \(R_3\).

Battery Terminal Voltage \(V_{\text{term}}\)Power Dissipated by \(R_2\)
(A)DecreasesDecreases
(B)DecreasesIncreases
(C)Remains the sameDecreases
(D)IncreasesIncreases

Which row in the table correctly indicates how the terminal voltage of the battery and the power dissipated by resistor \(R_2\) change after switch \(S\) is closed?

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