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Arus I=50 A terdistribusi merata pada seutas kawat berpenampang melingkar, denganr adius a =20mm (Gbr). Tentukan rapat arus volume J

The current l=50 A is evenly distributed in a
wire with a circular cross section, with a radius
of a = 20mm (Fig). Determine the volume
current density J!
L
Gaussian surface
a

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