Kirchoff's Law: Identifying Loops in Circuits

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Identifying loops in circuits using Kirchhoff's Law can be challenging, particularly with multiple loops present. In the provided diagrams, the loops for the first diagram are correctly identified as ABCFA and ABCDEFA, while the second diagram's loops are ABCFA and CDEFC. Understanding the structure of the circuit is crucial for accurate loop identification. Clear labeling and visualization of the circuit can aid in this process. Mastery of these concepts is essential for solving circuit problems effectively.
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Homework Statement



I am doing Kirchoff's law and i have problems in identifying different loops in a circuit, especially multiple loops. For example, in my attachment for diagram 1, there are 2 loops(ABCFA and ABCDEFA) ? But for diagram 2, the loops are ABCFA and CDEFC?
 

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thereddevils said:

Homework Statement



I am doing Kirchoff's law and i have problems in identifying different loops in a circuit, especially multiple loops. For example, in my attachment for diagram 1, there are 2 loops(ABCFA and ABCDEFA) ? But for diagram 2, the loops are ABCFA and CDEFC?


The loops for 1 and 2 are correct.
 
rock.freak667 said:
The loops for 1 and 2 are correct.


Thank you!
 
Thread 'Correct statement about size of wire to produce larger extension'

Thread 'Correct statement about size of wire to produce larger extension'

The answer is (B) but I don't really understand why. Based on formula of Young Modulus: $$x=\frac{FL}{AE}$$ The second wire made of the same material so it means they have same Young Modulus. Larger extension means larger value of ##x## so to get larger value of ##x## we can increase ##F## and ##L## and decrease ##A## I am not sure whether there is change in ##F## for first and second wire so I will just assume ##F## does not change. It leaves (B) and (C) as possible options so why is (C)...
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