A toroid of 
turns, mean radius 
and cross-sectional radius a carries current 
. It is placed on a horizontal table taken as 
plane. Its magnetic moment 
A
Is non-zero and points in the 
-direction by symmetry
-direction by symmetry B
Points along the axis of the toroid 
C
Is zero, otherwise there would be a field falling as 
at large distances outside the toroid
at large distances outside the toroid D
Is pointing radially outwards.
Text Solution
Verified by ExpertsThe correct answer is:
C
In a toroid magnetic field as in only confined inside the body of toroid in the form of concentric magnetic lines of force and outside the toroid magnetic
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