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AP Physics 2
11.6 Kirchhoff’s Loop Rule
11.5 Compound Direct Current (DC) Circuits
11.3 Resistance, Resistivity, and Ohm’s Law
BeginnerMCQMathematicalConceptual16.3k
A single-loop circuit containing two opposing batteries and two resistors.
A single-loop circuit containing two opposing batteries and two resistors.
A single-loop circuit contains two ideal batteries with electromotive forces \(\varepsilon_1\) and \(\varepsilon_2\) and two resistors with resistances \(R_1\) and \(R_2\), as shown in the diagram. The electromotive force of the first battery is greater than that of the second battery (\(\varepsilon_1 > \varepsilon_2\)), and the batteries are arranged such that their positive terminals face one another. Which of the following expressions represents the magnitude of the electric current \(I\) in the circuit?

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