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Please help me to solve it out The question is in y axis But the units have z axis (k)

Please help me to solve it out
The question is in y axis
But the units have z axis (k)

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Grade:12

1 Answers

Vikas TU
14149 Points
4 years ago
Hiii 
In the magnetic field formulae 
dB is directly proportional to Idl  cross r 
Here dl is in x axis and r is in y axis 
so, x cross y = z directon , so, ans is in z directon , 
now, solve for ur ans.
 

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