Help with Circuit: Total Resistance Calculation

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In summary, the conversation revolves around a circuit and calculating its total resistance. The participants discuss the concept of parallel and series resistors and give suggestions on how to approach the problem. Ultimately, the person is able to solve the problem with the help of the others.
  • #1
jafferrox
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Hi

I'm having trouble working out the total resistance in the circuit i have attached an image of.

Thanks in advance :)
 

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  • #2
Everything that is connected with wires can can be joined in a single point.

attachment.php?attachmentid=56858&stc=1&d=1363655330.png


Now every resistance that's between two of these points will be parallel with any other resistance that's between the same two points. For example between green and red you have 3 resistances in parallel, which you can replace by their equivalent.
 

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  • #3
can i please have the solution for this question because i have difficulty getting the answer because it's the first time I'm doing this type of problem.

Thanks in advance.
 
  • #4
Hi

I'm having trouble working out the total resistance in the circuit i have attached an image of.

Thanks in advance :)
 

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  • #5
jafferrox said:
Hi

I'm having trouble working out the total resistance in the circuit i have attached an image of.

Thanks in advance :)

what do you tried/know so far?
 
  • #6
jafferrox said:
can i please have the solution for this question because i have difficulty getting the answer because it's the first time I'm doing this type of problem.

Thanks in advance.

we try to avoid giving direct solutions, you don't learn anything that way ;)

redraw your circuit using willem2's suggestion.
You will see initially, you have 2 sets of parallel resistors the upper 6Ω, 12Ω and 4Ω ones
and the lower 2 lots of 4Ω ones
solve those 2 sets of parallel values

then you have a pair of 2Ω ones in series that you can get a total value for

Redraw the circuit now with those calculated totals and then do any other series or parallel calculations :)

here's a formula for calculating resistors in parallel ...

attachment.php?attachmentid=56861&stc=1&d=1363657992.gif


have some attempts to work it out, show us your working and us guys will guide you through the process :)

Dave
 

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Last edited:
  • #7
Thanks guys, i got the solution thanks to you.

:)
 
  • #8
solved it thanks.
 

FAQ: Help with Circuit: Total Resistance Calculation

What is total resistance in a circuit?

Total resistance is the combined resistance of all components in a circuit. It is measured in ohms (Ω) and is an important factor in determining the flow of current in a circuit.

2. How do I calculate total resistance in a circuit?

To calculate total resistance, you need to add up the individual resistances of all components in a circuit. This can be done using the formula R = R1 + R2 + R3 + ..., where R is the total resistance and R1, R2, R3, etc. are the individual resistances.

3. What is the difference between series and parallel circuits in terms of total resistance?

In series circuits, the total resistance is equal to the sum of all individual resistances. In parallel circuits, the total resistance is less than the lowest individual resistance due to the presence of multiple paths for current to flow.

4. How does the total resistance affect the flow of current in a circuit?

The total resistance of a circuit affects the flow of current in that a higher resistance will result in a lower current, and vice versa. This relationship is described by Ohm's Law, which states that current is directly proportional to voltage and inversely proportional to resistance.

5. What are some common factors that can affect total resistance in a circuit?

Some common factors that can affect total resistance in a circuit include the type of material used for the components, the length and thickness of wires, and the temperature of the circuit. Additionally, the presence of resistors, capacitors, and other components can also impact the total resistance.

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