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Grade: 10
        
An infinitely long straight conductor is bent into into the shape as shown in the figure. It carries a current of I ampere and the radius of the circular loop is r meter. Then the magnetic induction at its centre will be?
one year ago

Answers : (2)

Arun
22294 Points
							
Dear Amrit
 
I am getting my answer as 
 
B = mu * I *pi / 2 * pi *R   + 1
 
Regards
Arun (askIITians forum expert)
one year ago
Manisha Kumari
23 Points
							
 Since dir. of magnetic field is opposite in both straight wire and loop so net mag field will be-              B= uoI/2r - uoI/2pi×r = uoI(pi-1)/2pi×r
8 months ago
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