UT Austin PHY 303L: Engineering Physics II
PHY 303L is UT's calculus-based electricity and magnetism course for engineering majors: electric fields, Gauss's law, circuits, magnetic fields, and induction. It follows PHY 303K with the same Quest homework and timed-exam structure.
Fennie is independent and not affiliated with The University of Texas at Austin. This is an unofficial study guide.
What makes it hard
E&M removes the intuition mechanics provided: fields are invisible, directions come from cross products, and every problem starts from an abstraction rather than a picture of something moving. The timed multiple-choice format still gives nothing for almost-right, and direction errors, the signature E&M mistake, zero otherwise-correct work.
What you'll cover
- • Electric fields and Gauss's law
- • Electric potential and capacitance
- • DC circuits
- • Magnetic fields and forces
- • Faraday's law and induction
- • Electromagnetic waves (introduction)
The PHY 303L study guide
How to study for UT Austin PHY 303L, step by step.
- 1
Draw the field configuration first, always
E&M problems start from abstractions, and the diagram is what makes them concrete. Charges, field lines, and directions on paper before any equation.
- 2
Drill right-hand-rule directions to reflex
Direction errors are the signature E&M mistake and the timed format zeroes them. Practice cross-product directions on many configurations until automatic.
- 3
Build symmetry judgment for Gauss's law
Recognizing when Gauss applies, and choosing the surface, is the unit's real skill. Varied examples build the judgment; formula memorization doesn't.
- 4
Solve past Quest, timed
Like 303K, the exams grade setup on unfamiliar problems, and Quest volume alone doesn't build that transfer. Multiples of the assigned count, under a clock.
Today
Today's PHY 303L plan
What a Fennie Daily Plan looks like for PHY 303L. Yours is built from your own syllabus and adapts every day to your deadlines and progress.
First plan free, no card required. Fennie is independent and unaffiliated with your school.
FAQ
Is PHY 303L harder than PHY 303K?
Most engineering students say yes. E&M's invisible fields and vector directions are less intuitive than forces and motion. The method is unchanged: solved-problem volume well past Quest, with honest error classification.
What math does PHY 303L use?
Vectors and cross products throughout, plus integrals that get serious in the Gauss's law and induction units. Keeping calculus fluent is the most common avoidable difficulty multiplier.
How do I improve at PHY 303L problems?
Field diagram first, law selection second, algebra last. Drill right-hand-rule directions until they're reflexive, since direction errors zero otherwise-correct work in the no-partial-credit format.