Recent content by chopficaro

ok i got it we NEED to cojugate the denominator if he gives us the real or immaginary part of z if he gives us the magnitude |z| or the angle, we want to put the two in parallel by the rule of Zeq=Z1*Z2/(Z1+Z2) so for a capacitor and a resistor in parallel we get Z1=R Z2=1/jwc...

if we vary the imaginary part, your solution for |z| doesn't change, its as though were setting z to a scalar resistance, its the real part not the magnitude, the magnitude is the absolute vale, that's what we are looking for

i think what u are doing gives the real part of z, not the absolute value, which is the magnitude sqrt(real^2 +imaginary^2) i don't think ur method takes into account the coefficient of j

help me out guys i have a test on Wednesday, and I am stuck on a problem, it seems I am supposed to solve for angular frequency w but I am getting a 4th power equation for it which is unsolvable a 10k ohm resistor and a 100uF capacitor are in parallel, determine the angular frequency w where...

you are correct not to be sure, i just found out that its just an extra step in the methods i have already been using :( sorry believe it or not ur post helped me out, it made me think, wow, if the guys at physics forums don't know, then there must be something wrong with my question, sure...

i understand that there are times when one should (on paper) pump a network of resistors, capacitors, and inductors with a 1 amp ac current source or a 1 volt ac voltage source in order to determine certain values within the system however, i am having trouble determining when i need to use...

tyvm! don't know why that didnt show up on google

im taking circuit theory 2, which is all about ac circuits, but don't have enough money for a book need a place to learn about how to calculate lead and lag based on the inductance and capacitance, nortons and thevinans and all that stuff but in the context of sinusoidal currents and voltages

for a three phase power generator, you can have sources in series with inductances in either a wye or delta formation by designing the generator differently. from my understanding, if you choose wye instead of delta, then the power produced will be increaced by a factor of the root of 3 in...

tyvm, very informative, this has been bothering me for some time

yes, but it must be BALANCED, how would they maintain balance if all the loads are not equally shared on all 3 phases?

how are the wires wrapped on a transformer that converts from triple phase power distribution to split phase outlets?

how exactly is the voltage from triple phase power lines transformed into 120/240?

it did! tyvm!

and aparently it is also equal to complex power =(Veff)(Ieff) which is a scalar, but its also equal to complex power=(Vphasor)(Iphasor)/2 which is a phasor how can complex power be both a phasor and a scaler?