Questions
A long cylindrical wire of radius ‘a’ carries a current i distributed uniformly over its cross section. If the magnetic fields at distances r<a and R>a from the axis have equal magnitude, then
detailed solution
Correct option is B
Applying Ampere’s circular law. Inside point, B2πr=μ0Iπr2πa2 for rTalk to our academic expert!
Similar Questions
A long straight metal rod has a very long hole of radius ‘a ’ drilled parallel to the rod carries a current i . Find the magnetic field on axis of hole. Given C is the center of the hole and OC=c
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