How do you calculate the total resistance?

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Homework Help Overview

The discussion revolves around calculating the total resistance in a circuit described in a specific question. Participants are analyzing the configuration of resistors, including series and parallel connections, to determine the correct total resistance value.

Discussion Character

  • Exploratory, Assumption checking, Problem interpretation

Approaches and Questions Raised

  • Participants attempt to redraw the circuit and analyze the connections of resistors, questioning the arrangement of resistors in series and parallel. Some express confusion over their calculations and seek clarification on how specific resistors are connected.

Discussion Status

The discussion is ongoing, with participants providing guidance on how to approach the problem. There is an emphasis on using the circuit diagram to clarify connections, and some participants are exploring different interpretations of the resistor arrangements without reaching a consensus.

Contextual Notes

There is mention of specific resistor values and their configurations, but the exact details of the circuit setup are not fully provided, leading to varying interpretations among participants.

Zoro
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Homework Statement


What is the Total resistance in Question 38.

Homework Equations

The Attempt at a Solution


I tried drawing the circuit again splitting up the series and parallel but i got the wrong answer. The answer is 92. Like i know that the 60 is parallen to 15 and the 15 is parallel to 10. The 15 and 5 are in series and the 20 and 10 are in series and maybe also 5. [/B]
 

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"3. The Attempt at a Solution "
 
Zoro said:

Homework Statement


What is the Total resistance in Question 38.

Homework Equations

The Attempt at a Solution


I tried drawing the circuit again splitting up the series and parallel but i got 93. The answer is 92. Like i did 40 + 40 + 10+ 1/((1/60)+(1/15) + 1/20 + 1/10 + 1/5)[/B]
You took all the 60 Ω, 15Ω, 20Ω, 10Ω, 5 Ω resistors parallel; they are not.
 
ehild said:
You took all the 60 Ω, 15Ω, 20Ω, 10Ω, 5 Ω resistors parallel; they are not.
So what now
 
The ammeter can be replaced by a single wire. How are the 10Ω and 20Ω resistors connected?
 
ehild said:
The ammeter can be replaced by a single wire. How are the 10Ω and 20Ω resistors connected?
Well, it doesn't say. It's just in series judging by the diagram
 
Zoro said:
Well, it doesn't say. It's just in series judging by the diagram
You need to use the diagram.
Yes, they are in series. What is their resultant? How that resultant is connected to the 15 Ω resistor?
 
ehild said:
You need to use the diagram.
Yes, they are in series. What is their resultant? How that resultant is connected to the 15 Ω resistor?
Resultant? like 10 + 20 = 30 ?
 
Zoro said:
Resultant? like 10 + 20 = 30 ?
Yes. Now you replace the 10Ω and 20Ω resistors with their series equivalent. How is that 30Ω resistor connected to the 15Ω resistor?
 
  • #10
ehild said:
Yes. Now you replace the 10Ω and 20Ω resistors with their series equivalent. How is that 30Ω resistor connected to the 15Ω resistor?
I did this earlier. Is it correct
 

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  • #11
Zoro said:
I did this earlier. Is it correct
The diagram is correct. What is the result?
 
  • #12
ehild said:
The diagram is correct. What is the result?
80 + 1/ (1/60 + (1/20) + (1/30) = 90 =/= 92
 
  • #13
Zoro said:
80 + 1/ (1/60 + (1/20) + (1/30) = 90 =/= 92
Yor calculation is wrong. How are the 30Ω and 15 Ω resistors connected?
 
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  • #14
ehild said:
Yor calculation is worong. How are the 30Ω and 15 Ω resistors connected?
wat
 
  • #15
Zoro said:
wat
?
I quit. Good luck.
 
  • #16
ehild said:
?
I quit. Good luck.
LOl. wtaf man. can you just stop beating around the bush and hit the turkey on the head already?
 
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  • #17
Forum rules don't allow us to just give you the answer. For why see..

http://tinyurl.com/os67nwp

Next step (as ehild said) is to figure out how the 30Ω and 15 Ω resistors are connected? Series? Parallel? Replace these two with their equivalent.
 

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