GATE Electronics and Communications (EC) 2016 Shift 1 Solved Paper

Question : 61 of 65

Marks: +1, -0

The current density in a medium is given by

J↖{→} = \;{400sinθ\;}/{2π\;\;(r^{2} + 4) }a↖{\^}_{r}Am^{−2}

The total current and the average current density flowing through the portion of a spherical surface

r = 0.8\:m,\;{π\;}/{12}\: ≤ \:θ \: ≤ \;{π\;}/{4},\:0\: ≤ \:φ \: ≤ \:2π

are given, respectively, by

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