A long wire is bent into a circular coil of one turn and then into a circular coil of smaller radius having 
turns. If the same current passes in both the cases, the ratio of magnetic fields produced at the centre for one turn to that of 
turns is
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
C
Length is same 
(i)
By equation (i) and (ii), 
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