A current i ampere flows along the inner conductor of a coaxial cable and returns along the outer conductor of the cable, then the magnetic induction at any point outside the conductor at a distance r meter from the axis is
A
B
Zero
C
D
Text Solution
Verified by ExpertsThe correct answer is:
B
The respective figure is shown below Magnetic field at P due to inner and outer conductors are equal and opposite. Hence net magnetic field at P will be zero.
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