Questions
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 metre from the axis is
detailed solution
Correct option 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.Talk to our academic expert!
Similar Questions
A coaxial cable consists of a thin inner conductor fixed along the axis of a hollow outer conductor. The two conductors carry equal currents in opposite directions. Let B1 and B2 be the magnetic fields in the region between the conductors, and outside the conductor, respectively. Then
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