The magnitude J(r) of the current density in a certain cylindrical wire is given as a function of radial distance from the center of the wire's cross section as J(r) = Br, where r is in meters, J is in amperes per square meter, and B = 2.04 x 105 A/m³. This function applies out to the wire's radius of 2.00 mm. How much current is contained within the width of a thin ring concentric with the wire if the ring has a radial width of 12.2 μm and is at a radial distance of 1.42 mm? Number IM i Units НА
The magnitude J(r) of the current density in a certain cylindrical wire is given as a function of radial distance from the center of the wire's cross section as J(r) = Br, where r is in meters, J is in amperes per square meter, and B = 2.04 x 105 A/m³. This function applies out to the wire's radius of 2.00 mm. How much current is contained within the width of a thin ring concentric with the wire if the ring has a radial width of 12.2 μm and is at a radial distance of 1.42 mm? Number IM i Units НА
Chapter9: Current And Resistance
Section: Chapter Questions
Problem 29P: The current of an election beam has a measuredcurrent of I=50.00A with a radius of 1.00 mm2. What is...
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