Hey! I think I found a typo in the "Series resistor-capacitor circuits" page, which belongs to the chapter 4 of volume 2.
The typo is in the example at the bottom of the page, in the line "Z = 40 - j30 = 50∠36.87". I think the phase angle here, which is "36.87", should be negative.
http://www.allaboutcircuits.com/vol_2/chpt_4/3.html
The typo is in the example at the bottom of the page, in the line "Z = 40 - j30 = 50∠36.87". I think the phase angle here, which is "36.87", should be negative.
http://www.allaboutcircuits.com/vol_2/chpt_4/3.html