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I attempted to solve the problem using the formulas I have provided above, but my answers are not matching, also I tried to search for similar problems in the internet but found nothingkuruman said:According to our rules, to receive help, you need to show some credible effort towards answering the question(s). How about telling us what you do know and how you would approach this problem?
Please read, understand and follow our homework guidelines, especially item 4, here
https://www.physicsforums.com/threads/homework-help-guidelines-for-students-and-helpers.686781/
Thank you, I will learn how to do it. I am just learning and new here, so would appreciate solution for my problem, the problem seems very unique for me as it's really challenging for me to determine whether the resistors are in parallel or in series, otherwise I wouldn't post it here.kuruman said:OK, but "I tried and didn't get anywhere" is not sufficient attempt at a solution. Please post what you tried and what you got. We would prefer that you use LaTeX which is to learn. Click the link "LaTeX guide", lower left, to see how to do it.
We don't supply solutions, only hints and you must make and show an effort to use them. So here are some.valhakla said:Thank you, I will learn how to do it. I am just learning and new here, so would appreciate solution for my problem, the problem seems very unique for me as it's really challenging for me to determine whether the resistors are in parallel or in series, otherwise I wouldn't post it here.
As has been explained to you several times in this thread so far, we do not give solutions to schoolwork questions. We can provide hints, ask probing questions, find mistakes, etc., but the student must do the bulk of the work on schoolwork questions. Please see the PF Rules link under INFO at the top of the page.valhakla said:so would appreciate solution for my problem,
To find the equivalent resistance for resistors in series, simply add the resistance values of each resistor together. The formula is: \( R_{eq} = R_1 + R_2 + R_3 + \ldots + R_n \).
To find the equivalent resistance for resistors in parallel, use the formula: \( \frac{1}{R_{eq}} = \frac{1}{R_1} + \frac{1}{R_2} + \frac{1}{R_3} + \ldots + \frac{1}{R_n} \). Then, take the reciprocal of the result to get \( R_{eq} \).
To find the equivalent resistance in a mixed circuit with both series and parallel resistors, simplify the circuit step by step. First, find the equivalent resistance of any parallel groups, and then add the series resistances. Repeat this process until you have a single equivalent resistance between the two points.
For complex resistor networks, use techniques such as the Delta-Wye (Δ-Y) transformation, symmetry considerations, or Kirchhoff's laws to simplify the network. These methods help in breaking down the network into simpler series and parallel combinations.
Ohm's Law (\( V = IR \)) itself doesn't directly provide the equivalent resistance, but it can be used in conjunction with the principles of series and parallel resistances. For example, knowing the total voltage and current in a circuit allows you to calculate the equivalent resistance using \( R_{eq} = \frac{V}{I} \).