AP Physics C: E&M
11.7 Kirchhoff’s Junction Rule
A central junction in an electric circuit connects five branches carrying current, as shown in the table.
Based on conservation of electric charge, what are the magnitude and direction of current \(I_5\)?
| Branch | Current Magnitude | Direction Relative to Junction |
|---|---|---|
| 1 | \(3\text{ A}\) | Into junction |
| 2 | \(5\text{ A}\) | Into junction |
| 3 | \(2\text{ A}\) | Out of junction |
| 4 | \(4\text{ A}\) | Out of junction |
| 5 | \(I_5\) | Unknown |
Based on conservation of electric charge, what are the magnitude and direction of current \(I_5\)?
Similar Questions
Tools for a 5
AP aligned mock tests to help you get a 5.
With grading, adaptive explanations, and more.
Find a Quiz
Find, solve, and grade every AP FRQ ever.
Find an FRQ
Stuck on AP Physics C: E&M? Get unstuck with an AP specialist.1 to 1 tutors who know the exam inside out. Understand weeks of material in a single session.Find a Tutor
Learn AP Physics from scratch, quickly. This is the only course you'll need for the year.
A self-paced course with everything you need to get a 5. Trusted by over 15,000 students and 200+ schools. Learn fast, or we'll refund your purchase, backed by our 100% satisfaction guarantee.
Explore the Course