# Lesson 6 — AC Circuit Analysis

<p class="block-synopsis">Reading an AC waveform, phase angle, RMS values, and real power.</p>

**Objectives covered**

- **1.3** — I can calculate the voltages, currents, instantaneous power, and average power associated with devices in a simple AC-powered circuit using tools such as KVL, KCL, voltage and current dividers, Ohm’s Law, RMS values, and the power equation.

:::{admonition} Due at this lesson
:class: warning

Quiz 1 (Obj 1.1–1.2)
:::

<div class="block-toc">
  <a class="bt-card bt-reading" href="../Block1Reading/Obj03/ECE215_Obj03_Reading.html">
    <span class="bt-kind">Reading</span>
    <h4>AC Circuit Analysis</h4>
    <p>The course reading for Objective 1.3.</p>
  </a>
  <a class="bt-card bt-flashcards" href="L06_Flashcards.html">
    <span class="bt-kind">Flashcards</span>
    <h4>Review deck</h4>
    <p>Key terms, equations, and ideas from this lesson, in a self-test deck.</p>
  </a>
  <a class="bt-card bt-slides" href="../_static/slides/ECE_215_Lesson06.pdf">
    <span class="bt-kind">Slides</span>
    <h4>Lesson 6 deck</h4>
    <p>The slides used in class, as a PDF.</p>
  </a>
  <a class="bt-card bt-practice" href="../downloads.html">
    <span class="bt-kind">Practice Problems</span>
    <h4>Work these before the quiz</h4>
    <p>Ungraded problems with answers, on the downloads page.</p>
  </a>
  <a class="bt-card bt-demo" href="https://usafa-ece.org/apps/power-demo/" target="_blank" rel="noopener">
    <span class="bt-kind">Demo ↗</span>
    <h4>Power Demo</h4>
    <p>Watch phase shift split apparent power into real and reactive.</p>
  </a>
</div>