Chapter 9 Electric Circuits
When we connect conductors with power sources appropriately, we find current flow. Soon after the circuit gets connected, the current in various parts of the circuit usually changes with time, but after some time, these currents become steady if the power sources are constant in time. In this chapter we will study only the steady current in a circuit that has steady power source and conductors (i.e., resistors) so that current in any conductor flows only in one direction. These circuits are called direct current (DC) resistive circuits, even though they also have capacitance in the circuit. In the next chapter, we will study capacitative circuits, where we study the buildup and decay of current in circuits.
