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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
IntermediateMCQMathematicalConceptual14.2k
A two-loop direct-current circuit with two batteries and three resistors.
A two-loop direct-current circuit with two batteries and three resistors.
A direct-current circuit contains two ideal batteries and three resistors arranged in two loops, as shown in the diagram. The left branch contains a \(20\text{ V}\) battery and a \(4.0\text{ }\Omega\) resistor. The middle branch contains a \(2.0\text{ }\Omega\) resistor, and the right branch contains a \(12\text{ V}\) battery and a \(4.0\text{ }\Omega\) resistor. What is the electric current through the \(4.0\text{ }\Omega\) resistor in the left branch?

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