MAXWELL'S EQUATIONS AND ELECTROMAGNETIC WAVES — Edward Purcell & David Morin
Physics — E&M · drawing-the-complex-vectors
Problem
For the series and parallel RLC circuits in Figs. 8.10 and 8.20, draw the vectors representing all of the complex voltages and currents. For the sake of making a concrete picture, assume that R=∣ZL∣=2∣ZC∣. The vectors all rotate around in the complex plane, so you can draw them at whatever instant in time you find most convenient.