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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
11.3 Resistance, Resistivity, and Ohm’s Law
AdvancedMCQMathematical19.6k
A circuit with an ideal battery, a series resistor, and three parallel branches.
A circuit with an ideal battery, a series resistor, and three parallel branches.
A circuit consists of an ideal battery with electromotive force \(\varepsilon\) connected in series with a resistor of resistance \(R\). This series combination is connected across a multi-way junction that divides current among three parallel branches with resistances \(R\), \(2R\), and \(3R\), as shown in the diagram. Which of the following expressions represents the electric current \(I_2\) flowing through the branch with resistance \(2R\)?

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