A long conducting cylinder having a radius ‘b’ is placed along the z axis. The current density is J = J a r 3 ẑ for the region r < b where r is the distance in the radial direction. The magnetic field intensity (H) for the region inside the conductor (i.e. for r < b) is

GATE Electrical Engineering (EE) 2022 Solved Paper

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A long conducting cylinder having a radius ‘b’ is placed along the z axis. The current density is J = J_ar³ẑ for the region r < b where r is the distance in the radial direction. The magnetic field intensity (H) for the region inside the conductor (i.e. for r < b) is

$\;{J_{a}}/{4}r^{4}$
$\;{J_{a}}/{3}r^{3}$
$\;{J_{a}}/{5}r^{4}$
J_ar³

Validate

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