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A tungsten wire at with length, L = 1.83 m, carries a current with density, J = 1.35 x 107 A/m²,
at a temperature of 20°C, where its electrical conductivity is a = 1.80 x 1072-1.m-1.
(a) Write a symbolic expression for the electric field strength in terms of J, 0, and L (as needed) then calculate its numeric value.
E =
||
V/m

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