EC ENGR 10 · EE 10Circuit Theory I
Electrical and Computer Engineering · 4 units · Undergraduate lower division (0-99)
Introduction to linear circuit analysis. Resistive circuits, capacitors, inductors and ideal transformers, Kirchhoff laws, node and loop analysis, first-order circuits, second-order circuits, Thevenin and Norton theorem, sinusoidal steady state.
Letter grading.
When it runs
- Winter 2026
- Winter 2027
Scheduled, not typical — from UCLA’s Schedule of Classes, which publishes Fall 2025 through Spring 2027 and nothing before it.
Requisites
Official UCLA wording
Requisites: course 3 (or Computer Science 1 or Materials Science 10), Mathematics 33A, Physics 1B. Corequisites: course 11L (enforced), Mathematics 33B.
BruinTree reads · Prerequisite
confidence 1.00 · from textBruinTree reads · Corequisite
confidence 1.00 · from textRequires
Everything that has to come before this course, not just the courses named in the requisite above.
EC ENGR 10
- EC ENGR 3Introduction to Electrical Engineering
- EC ENGR 11LCircuits Laboratory I
- COM SCI 1Freshman Computer Science Seminar
- MAT SCI 10Freshman Seminar: New Materials
- MATH 33ALinear Algebra and Applications
- PHYSICS 1BPhysics for Scientists and Engineers: Oscillations, Waves, Electric and Magnetic Fields
- MATH 31BIntegration and Infinite Series
- PHYSICS 1APhysics for Scientists and Engineers: Mechanics
- MATH 32BCalculus of Several Variables
- MATH 33BDifferential Equations
7 direct requisites. Showing 24 courses over 3 levels; the branches marked with a count carry on past it. Every course here opens its own tree.
Unlocks
What this course is a requisite for, and what those courses lead to in turn.
EC ENGR 10
- EC ENGR 11LCircuits Laboratory I
- EC ENGR 10HCircuit Theory I (Honors)
- EC ENGR 110Circuit Theory II
- EC ENGR 110LCircuit Measurements Laboratory
- EC ENGR 112Introduction to Power Systems
- EC ENGR 115AAnalog Electronic Circuits I
- EC ENGR C115PPower Electronics
- EC ENGR 184DAIndependent Group Project Design
- EC ENGR 184DBIndependent Group Project Design
- EC ENGR C215PPower Electronics
- EC ENGR 110HCircuit Theory II (Honors)
- EC ENGR 111LCircuits Laboratory II
- EC ENGR 115ALAnalog Electronics Laboratory I
4 courses list this as a requisite. Showing 26 courses over 3 levels; the branches marked with a count carry on past it. Every course here opens its own tree.