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AP Physics C: E&M
11.6 Kirchhoff’s Loop Rule
11.5 Compound Direct Current Circuits
11.4 Electric Power
AdvancedMCQMathematicalProportional AnalysisConceptual13k
Two identical non-ideal batteries connected in parallel across a load resistor.
Two identical non-ideal batteries connected in parallel across a load resistor.
Two identical real batteries, each having electromotive force \(\mathcal{E}\) and internal resistance \(r\), are connected in parallel with each other. This parallel combination is then connected across a variable load resistor of resistance \(R_L\). Which of the following correctly gives the terminal voltage \(V_T\) across the load resistor and describes how the overall power efficiency \(\eta = P_{\text{load}} / P_{\text{total}}\)

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