Amateur Extra Lesson 7.1, AC Waveforms and Measurements, 11th Edition

Posted on October 2, 2016 by

Here’s your video introduction to Section 7.1, “AC Waveforms and Measurements,” from the 11th Version of the ARRL Extra Class License Manual for Ham Radio.

You can find a complete list of the Amateur Extra videos by clicking here, or click here to go to the YouTube Amateur Extra playlist. Please post your questions either below or on the YouTube page for this video. Good luck in your studies!

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2 Responses to Amateur Extra Lesson 7.1, AC Waveforms and Measurements, 11th Edition

  1. Dave says:
    January 17, 2017 at 11:50 am

    E = I x R
    P = E x I
    substituting, P= I x I x R = I^2 x R, so I squared R.

  2. injunear says:
    January 17, 2017 at 6:14 am

    Time 14:52

    Am I misunderstanding the power equation, or should it be P = I squared over R? Or perhaps I am confusing it with P = I squared R?

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