AP® Physics 2: Algebra-Based · Unit 11 · Topic 11.7
Solving a Two-Loop Circuit
Watch it explained
- How it worksWalk me through setting up loop and junction equations for a circuit with two batteries.
- Worked exampleFind all three branch currents in a two-loop circuit with 12 V and 6 V sources and 4, 6, and 3 ohm resistors.
- Common mistakeWhy isn't a negative answer for a branch current a sign that you made an algebra mistake?
- Going furtherWhat changes about the equations when you guess the current directions the other way round?
Check yourself
Your turn1 of 2
Two batteries, 16 V through a 9 ohm resistor and 11 V through a 4 ohm resistor, both feed into a shared 3 ohm branch at one node. Find the current through the shared 3 ohm branch.End of topic.