Recent content by ZenPhys

Oh ya. I eventually did that. But i realized that since my external force is a sin function. I can't be equate that. Instead, I should differentiate A^2 + B^2 such that the differentiation of that is zero. That would then give me the maximum amplitude. Would that be correct?

Homework Statement This is for my differential equation project and this is the last part of the question. We know that the R=2 and C=0.001. We are given the equation: Q''+(R/L)Q'+(1/LC)Q=(117/L)sin(120*pi*t) We want to find the value of L such that we maximize the amplitude of the steady...