<p>I’m assuming this is for Physics E&M… I think all of the reviews for professors teaching that class are negative. It’s not an easy subject. As for the accuracy of the ratings, I’ve found that reviews for the lower-div courses (which usually have a ton of students) are more or less correct. </p>
<p>However, once you get into the upper-divs the reviews are mainly by people who either loved or hated the class (usually the latter). It’s often just the one professor who teaches the course/subject, so once the course numbers hit 100, RateMyProfessor becomes a bit irrelevant. Of course, this is for Computer Science. The other majors could be different.</p>