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18 January, 17:55

A wire has a current density of 6.25 * 10 6 A / m 2 6.25*106 A/m2. If the cross-sectional area of the wire is 1.79 mm 2 1.79 mm2, what current I I does the wire carry?

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  1. 18 January, 20:32
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    Answer:17.44A

    Explanation: Current density=I/Area

    Area is given by 2.79mm^2=2.79*10^-6m^2

    Current=I=current density * Area=6.25*10^6 * 2.79*10^-6=17.44A
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