In the second part on the alternating variables, we clarify what is meant by the term phase position and why degrees are used for it. It is shown how to set up pointer diagrams in order to determine the phase relationships in the circuit and a new quantity is introduced, the angular frequency.

0:00 - Intro
0:52 - AC voltage from the generator
2:40 - Where does the sine wave come from?
3:15 - Phase and Angle
3:50 - The angular frequency
5:15 - The trigonometric functions
7:11 - phases of current and voltage
8:51 - Graphing through vectors
9:15 - Developing a phasor diagram
10:53 - 1+1 = 1.414?
13:10 - A practical example