In this paper we deal with RLC or RLCG circuits, where some of the coefficients are influenced by a colored noise. Our approach to the mathematical description of this situation is via stochastic differential equations. We present numerical solutions of the corresponding equations. We compare the deterministic solution with the stochastic ones. We also compute and illustrate the corresponding confidence intervals for the stochastic solutions. Numerical simulations in the examples are carried out using Matlab.