Question: The volume current density through a long cylindrical conductor is given to be J = J,21-2 where, R R is radius of cylinder and

The volume current density through a long cylindrical conductor is given to

The volume current density through a long cylindrical conductor is given to be J = J,21-2 where, R R is radius of cylinder and 'r' is the distance of some point from the axis of cylinder and J is a constant. The value ofr at which magnetic field maximum is : O 3R 2 2 3R 4 R 4

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