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Answer:
6.5454 m
Explanation:
Let the distance from the wire carrying 3 A current is x
Then the distance from the the carrying current 8 A is 24-x
We know that magnetic field due to long wire is given by
It is given that magnetic field is zero at some distance so

Here
So 
<h3>Secondary colours are those colours which are obtained by mixing two other colours.</h3>
<h2>Please mark me as brainliest!</h2>