Solid lectures that are clear and makes sense, HWs are tough but reasonable, and decently difficult exams without being merciless. Overall a good introduction to electrostatics without feeling terribly hard.

Chill prof, not too difficult but not an easy class just because electrostatics can be a bit challenging. Overall, a class that if you put the time into studying the concepts well, you will do more than fine.

Electrostatics is a hard concept to digest but Luo did a great job of introducing it to us. Lectures were great and somewhat intuitive, and she helped where it got a little fuzzy. Tests were fair and difficult, but curved nicely. Homeworks are hard but help you learn a lot. Office hours were also great.

Meh, physics 23 was already boring and she didn't do anything to make it less boring

Very good physics professor! Made the concepts clear, and was always willing to explain further, incredibly kind and caring. Tests are very easy, and she clearly wants to just give fair tests that most people can do well on. Also she gave us snacks on test day so immediate 5.