Chapter 5 is the first chapter in which we incorporate coupling path models extracted from an EM simulation into a circuit schematic. This chapter serves as an introduction to the concept of coupled EM and circuit simulations. In all examples presented, the coupling process is entirely manual, and only static and quasi-static EM‘ methods are used. After introducing the (quasi-)static approximations, we present a universal schematic that illustrates the decomposition of an EMC problem into source, coupling path, and sink, and explain how this decomposition is applied in coupled simulation models. This schematic is then applied to different application examples, each utilizing a specific coupling path model: galvanic, capacitive, and inductive. In the final application example of this chapter, we introduce the concept of partial RLC models and demonstrate its application in the calculation of a power module. The advanced section of this chapter explores how EM simulation in the (quasi-)static regime benefits from the use of potentials.