Hi, I have made a thread about electricity a couple of days ago, which Jimmy kindly helped me out with, but I am again, stuck on the last question (most dificult question).(adsbygoogle = window.adsbygoogle || []).push({});

Here is the diagram that I have scanned: http://gallery.cybertarp.com/albums/userpics/12541/electricity2.gif

Basically, I need to find voltage drop across the resistor (V), current flowing through the resistor (I), the resistance constant (R) mainly using this equation: V = IR

I need to find: R1, R2, R3, R4, Rt (total), I1, I2, I3, I4, It (total), V1, V2, V3, V4 and Vt (total).

Well, when I tried to solve this question, I thought because I1 = 8.5A and it is in series with the power source, It = 8.5A also. Then I got stuck. I though I4 is also equal to 8.5A, but apparently, the answer says it's not.

It's quite surprising to see that V2 and V3 have different values. I thought since they are in parallel relationship, they must be the same.

Here are the answers for your convinience:

It = 8.5A

Rt = 4.47ohms

Vt = 38V

I1 = 8.5A

R1 = 2ohms

V1 = 17V

I2 = 3A

R2 = 7ohms

V2 = 21V

I3 = 5.5A

R3 = 2.32ohms

V3 = 12.75V

I4 = 5.5A

R4 = 1.5ohms

V4 = 8.25V

Thank you very much for your help!

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# Homework Help: Hard Electricity Question

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