Mixing Problems - Purdue University
www.math.purdue.edu › academic › filesSubstituting into Equation (1.7.13) from (1.7.10)–(1.7.12) and rearranging yields the basic differential equation for an RLC circuit—namely, L di dt +Ri+ q C = E(t). (1.7.14) Three cases are important in applications, two of which are governed by first-order linear differential equations. Case 1: An RL CIRCUIT.