Current flowing through the resistor

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Homework Help Overview

The discussion revolves around a circuit analysis problem involving resistors and current flow, specifically focusing on calculating the current through a resistor using various methods such as mesh analysis and Ohm's law.

Discussion Character

  • Mixed

Approaches and Questions Raised

  • Participants explore different methods for analyzing the circuit, including mesh analysis and combining resistors in series and parallel. Questions arise about the application of Ohm's law and the correct approach to find the current through specific resistors.

Discussion Status

There is an ongoing exchange of ideas with some participants providing guidance on circuit analysis techniques. Multiple interpretations of the circuit configuration are being discussed, particularly regarding the arrangement of resistors and the application of circuit laws.

Contextual Notes

Some participants mention a lack of familiarity with Kirchhoff's laws, which are relevant to the discussion. There is also an emphasis on the need to visualize the circuit through diagrams to aid in understanding the current paths.

  • #31
joaofbi1 said:
So how do I Calculate how much mA I have lost through the resistor?

No current is lost through a resistor; only the voltage is used up.
 
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  • #32
But where exactly did you get 0.55mA from? That has completely stumped me.
 
  • #33
Current I2 from message #28.
 
  • #34
Could I not just simply do 6V/10kΩ to get 0.6 instead of doing
I2 = 6 V/10.8 k ohms = 0.55 mA
 
  • #35
So once we know that the current going through the 10k Ohms resistor is 0.55mA how do we then do it?

Shall I convert the 0.55mA into volts then do the same operation as above?
 
  • #36
No ... you need to use the equivalent resistance for this branch, which is 10.8 k.

Go back through and draw each of the reduced circuits, labeling them 0 for the original, 1 for the first reduction, etc until you get to the final reduced circuit which has one resistor, and which provides the total current.

Record the equivalent resistances that have been found for each reduced circuit as you move from 0 to N, and then record the voltage drops and currents as you work your way back from N to 0.

When you do this yourself you should get consistent, correct answers.

I'll be offline for a few days due to international travel; Gute Nacht from Germany!
 
  • #37
I still don't understand but thank you to everyone that helped me.
 
  • #38
Would you like to go through it again with a slightly different approach?
 
  • #39
No use now, I'll be going to bed and it's due in tomorrow. I'll just ask the teacher how to do it. But I think I may have got it on my own anyway by using Vr=(R1/(R1+R2)x6
 

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