••10 The magnitude J of the current density in a certain lab wire with a circular cross section of radius R = 2.00 mm is given by J = (3.00 × 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 = 0.900R and r = R? %3D

••10 The magnitude J of the current density in a certain lab wire with a circular cross section of radius R = 2.00 mm is given by J = (3.00 × 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 = 0.900R and r = R? %3D

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Question

••10 The magnitude J of the current density in a certain lab
wire with a circular cross section of radius R = 2.00 mm is given by
J = (3.00 × 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 = 0.900R and r = R?
%3D

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