# Lesson 7 — Reactive and Apparent Power

<p class="block-synopsis">Capacitors and inductors, the power triangle, and why power factor costs money.</p>

**Objectives covered**

- **1.4** — I can compute the reactive and apparent power values for an AC-powered circuit.

<div class="block-toc">
  <a class="bt-card bt-reading" href="../Block1Reading/Obj04/ECE215_Obj04_Reading.html">
    <span class="bt-kind">Reading</span>
    <h4>Reactive and Apparent Power</h4>
    <p>The course reading for Objective 1.4.</p>
  </a>
  <a class="bt-card bt-flashcards" href="L07_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_Lesson07.pdf">
    <span class="bt-kind">Slides</span>
    <h4>Lesson 7 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>