Calculate the magnitude and phase angle of the circuit impedence

I am currently still going to school as an EE major, I am taking an electronics devices class, I seem to be having issues with this diagram:

Sorry if it is sloppily drawn. It asks to Calculate the magnitude and phase angle of the circuit impedence, I know to find the impedence it is 1/(2PI*f*c), which is around 4 ohms. But how does one find the magnitude[convert to V which the formula works as (sqrt. Vc^2 + Vr^2)]. My question is this, would I need to change uF and f into V to get the magnitude or does it work like the magnitude formula but the result would not come out as voltage?

Replies

• Kaustubh Katdare
Re: Hope this is the right place to ask this

Raith, the most appropriate place for this question is our Electronics & Electrical Engineering section where we discuss everything related to electricity 😀 .

-The Big K-
• Raith
You're right but this is for newbies like me haha, I think I figured it out after reading over some sections of the book. Cheers!
• reachrkata
Woow !!! need to brush up all the forgotten Basic electricity studied ages back during Engineering.

But If I remember it right :
expressing the impedance as a Complex number
Z = R + jXc where Xc is 1/(2*Pi*f*C)

then i think the magnitude is Sqrt (R^2 + Xc^2)
and the phase i think is tan inverse (Xc/R)

I only vaguely remember this, so people please correct me If i am wrong ???

As i see, there is no need of any voltage. the frequency is given only for the impedance calculation.
• crook
You can use subscripts and superscripts using special bb codes. Look #-Link-Snipped-#
• surendarkashyap
magnitude is sqrt(R^2+Xc^2)
phase is actuallt arc tan(Z/R)where Z=(Xc-Xl)[Xl is impedence due to inductor which is zero in this case)
so phase(according to this prob )is arc tan(Xc/R)
tats rite!!!!!!
• sauravgoswami
Dude,hope u have got your ans,and solve it accordingly..welcome!!!

You are reading an archived discussion.

IMPORTANT : How to ask questions in this section

Hello all engineers and potential engineers out there. This thread is to give the new members a clear direction on how to post their questions to the forums and get...

Materials Science & Engineering

hey!s i guess we are missing one important and "the" most fascinating engineering trade in today's world! THE MATERIALS SCIENCE & ENGINEERING!!! calling out material science s out here! lets...

20th Century: Greatest Engineering Achievement

Probably not a good topic for debate. But you'll agree, its an interesting topic! What, according to you, was the greatest engineering achievement in 20th century & why? -The Big...

related to CD DVD drive problem

HEllo friends I have CD RW previously now I borrow a DVD RW with my friends to copy some material when I connect it to my PC in a same...

Wireless camera project

Hey everyone, I am in the process of completing my senior design project in school and am in need of some assistance with a portion of it. Essentially want I...