That depends on your interest in the Subject.
I was always more inclined to Maths though I didn’t score well cause I never practiced well.
I miserably flunked in Transmission Lines and Networks and another subject which I don’t even remember.
I still managed to clear them in the next and next semesters though.
So if you are afraid you’ll flunk, all I’d suggest is for you to practice well and you’ll have nothing to worry about.