Answered: The magnitude J of the current density… | bartleby

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The magnitude Jof the current density in a certain wire with a circular cross section of radius R = 2.28 mm is given by J = (3.18 ×
10®)r2, with J in amperes per square meter and radial distance r in meters. What is the current through the outer section bounded by
r = 0.927R andr = R?
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