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I am unable to solve this question.. Please help.. Ans : Option 3

I am unable to solve this question.. 
Please help.. 
Ans : Option 3 

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Grade:10

1 Answers

Vikas TU
14149 Points
3 years ago
Dear student 
Assume the middle of 4ohm resistance point as C 
Now A is connected to C with two 4ohm in parallel , 
C is connected to B with 4ohm 
A is connected to B with R ohm 
Now solve using Parallel and series of Resistance 
Equivalent R = 3ohm 
6R /(6+R) =3 
Solve for R it wil be 6ohm 
 

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