Question : Consider a current i flowing through the inner conductor of a coaxial cable and the current returns along the outer conductor of the cable. The value of magnetic induction at a distance r from the axis is
a) (μ₀/4π)(2i/r)
b) ∞
c) Zero
d) (μ₀/4π)(2πi/r)
Doubt by Diya
Solution:
By using Ampere's law we can calculate that the the total magnetic field will be zero. Hence, the correct option will be c) Zero
