Voltage Divider Design

Thread Starter

yan500

Joined Jul 12, 2011
48
Hi all,

Hope everyone's having a great weekend. I have a problem that I'm trying to solve and it's tripping me up. http://www.allaboutcircuits.com/worksheets/e_divide.html

It is Question 35 on the worksheet located at the link above. Since the problem states that you can assume there is a bleed current of 1.5 mA, I calculated the total current in the circuit to be 13.5 mA. I believe that this is what's throwing me off. Can someone tell me what the total current in the circuit is and how they calculated it?

Thanks!
 

Thread Starter

yan500

Joined Jul 12, 2011
48
Right, but for R3 + Load 1 you get 4.5 mA, which gives you the right answer for R3. But shouldn't the total of R2 + Load 2 give you 4.5 mA as well because of the loop rule?
 

Jony130

Joined Feb 17, 2009
5,183
Maybe this will help you withe KVL
And remember that if elements are connect in parallel they will have the same voltage across them.

VR4=V3+V2 or VR4=VB-V1, VR5=VB1, V1+V2=VR2
 
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