I had an avionic exam that would prolonged my journey to getting my aviation license by 3 years if I had failed. I saw your videos and passed my exam. Thank you Dave.
Dave, you are saving my semester. This slide show we were given actually says the two branch currents can be added for the total current. That is what I am dealing with! Thank you.
10:55 I had my second Eureka moment in this video series. I tried using both the Pythagorean theorem and the Inverse Inverse formula to calculate the impedance and wasn't getting the right answer. Then you said the triangle doesn't work and the formula is a mashup of the two and it all made sense. My previous Eureka moment was when you described resistance and inductive reactance as impedance in an earlier video. AC circuits are starting to make sense in a way they never have before. Excellent teaching.
You are best teacher I have ever seen ....I m indian ...my language is hindi ..I m not much good 8n English but I understand the whole thing you teach ....thank you. Sir 🙏
Professor Dave you are a genius sir! I love your teaching style and the sheer simplicity and depth of theory of your teaching. I’m double majoring in electronics engineering and mathematics and your videos have helped me immensely. Thank you sir and God bless 🙏🙏🙏
Dear dave... there is an impedance triangle for parallel. What you need to do is take the inverse values of R and L. The formula is as follows Z = 1/ (The square root of ( (1/R)^2 + (1/XL)^2 )
How does impedance have a phase angle in parallel RL circuits if the impedance triangle cannot be made? What does the phase angle of impedance even mean? There's no sine or cosine wave for impedance is there? Isn't impedance a constant even when voltage and current vary throughout their cycles?
It's the admittance triangle we're looking for. We find the angle of the admittance triangle then take the additive inverse and boom that's our impedance phase angle. Right? 😅 I think
