Here’s your video introduction to Section 4.3, “Principles of Circuits,” in the 11th Edition of the ARRL Extra Class License Manual for Ham Radio. Part 1 covers RC and RL time constants, phase angle, complex impedance, and reactive power and power factor.
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!