Magnetic Field Inside Cylindrical Conductor

AI Thread Summary
The magnetic field inside a cylindrical conductor with inner radius a and outer radius b, carrying a uniform current I, is zero due to the application of Ampere's Law. The law indicates that the magnetic field is generated by currents enclosed within a loop, and since there is no current in the hollow part of the conductor, the field remains zero. The magnetic field lines form concentric circles around the wire, but only in regions where current is present. This phenomenon highlights the importance of current distribution in determining magnetic fields. Thus, the absence of enclosed current in the hollow section leads to a magnetic field of zero inside the conductor.
pardesi
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why is the magnetic field just inside a cylindrical conductor with inner radii a, and outer radii b carrying a uniform current I distributed throught it's croos section just 0 inside the conductor.
I used ampere's law and that surely doesn't give 0
 
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a current produces a magnetic field whose lines of force form circles around the wire carring the current. every loop (of field lines) must inclose a current and there is no current in the hollow part of the wire.
 
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