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In this question, we have to determineI 1 , If I apply the loop rule as: 20I 1 - 20I 2 = 80v, I get I 1 as 2A but if I apply it as 20I 2 -20I 1 =80v, I am getting a different answer for I 1 Why is this happening? We can apply the loop rule anyway, right?

In this question, we have to determineI1,
If I apply the loop rule as:         
20I1- 20I2 = 80v,
I get I1 as 2A but if I apply it as
20I2-20I1=80v,
I am getting a different answer for I1
 Why is this happening? We can apply the loop rule anyway, right?

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Grade:12

2 Answers

Saurabh Koranglekar
askIITians Faculty 10335 Points
4 years ago
Dear student

Pleaae upload all the equations taken to solve so that errro can be found

Regards
Vikas TU
14149 Points
4 years ago
Dear student 
You have applied mesh analysis incorrectly , That is why you are not getting ans. 
You need to put I3 = I1 + I2 then solve .
Hope this helps 
Good Luck 

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