| Vocademy |
DC stands for Direct Current, meaning the current flows in one direction. In the example circuits we work with here, we will assume the voltage is steady—constant in amount and direction. Under these steady‑state conditions, the voltage and current do not change with time, so we can analyze the circuits using simple algebra.
Up to this point we have focused on individual conductors, resistors, and switches as they behave on their own. Now we will see how they work together in complete circuits. Although resistive circuits behave the same under DC or AC, we treat these topics under DC first because the behavior is steady and easier to visualize. Later, we will see how capacitors and inductors behave in DC circuits. After that, when we study AC, we’ll see how periodically changing signals introduce new effects in these components.
| Vocademy |