Two similar coils are kept mutually perpendicular such that their centers coincide. At the centre, find the ratio of the magnetic field due to one coil and the resultant magnetic field by both coils, if the same current is flown
A
1: 
B
1 : 2
C
2 : 1
D
Text Solution
Verified by ExpertsThe correct answer is:
A
Suppose the magnetic field produced due to each coil is 
.
The two coils are kept perpendicular hence, the angle between these is 
therefore, the resultant magnetic field is given by
Hence, the ratio of magnetic field due to one coil and the resultant magnetic field is given by
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