A toroid with thick windings of 
turns has inner and outer radii 
and 
respectively. If it carries certain steady current 
, the variation of the magnetic field due to the toroid with radial distance is correctly graphed in
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
D
The magnetic field due to a toroid
where 
For
For constant
For
If in option , we take distances as and
, then it will be correct.
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