Question

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).



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

- unanswered At the center of the inner wire. At the surface of the inner wire. At the inner surface of the sheath. At the outer surface of the sheath.
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#4B (4 points possible)
What is the magnitude of the maximum magnetic field in T?

What is the magnitude of the maximum magnetic field in T? - unanswered