Consider a coaxial cable with a central conducting wire (r=1mm) surrounded by an outer coaxial conducting sheath (rinner=3mm,router=3.2mm) as shown. A current i=300mA flows down the center wire (into the page) and back through the conducting sheath (out of the page).

Question

#4A (2 points possible)
Where does the resulting magnetic field have the greatest magnitude?

- unanswered

Answer 1

The greatest magnitude of the magnetic field will be at the center of the coaxial cable, between the inner and outer conducting sheaths.