Two circular coils 
and Y have equal number of turns and carry equal currents in the same sense and subtend same solid angle at point 
. If the smaller coil 
is midway between 
and 
, then if we represent the magnetic induction due to bigger coil 
at 
as 
and that due to smaller coil 
at 
as 
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
C
As two coil subtend the same solid angle at 
, hence area of coil, 
area of coil 
i.e., radius of coil 
radius of coil 
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