Q85
An infinitely long uniform solid wire of radius a carries uniform dc current of density J . The magnetic field at a distance r from the center of the wire is proportional to
An infinitely long uniform solid wire of radius a carries uniform dc current of density
The magnetic field at a distance r from the center of the wire is proportional to
The magnetic field at a distance r from the center of the wire is proportional to
A.
r for r < a and for r > a
B.
0 for r < a and for r > a
C.
r for r < a and for r > a
AnswerD.
0 for r < a and for r > a
Answer: Option C
Solution
Answer: Option C
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