3. [416 Points] DETAILS PREVIOUS ANSWERS SERPSE10 26.1.P.006. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER The gure below represents a section of a circular conductor of nonuniform diameter carrying a current of I = 5.20 A, The radius of cross-section A1 is r1 = 0.250 cm, (a) What Is the magnitude of the current density across A1? .65e5 A/rnz The radius r2 at A2 is larger than the radius r1 at A1. (b) Is the current at A2 larger, smaller, or the same? 0 The current is largel: O The current ls smaller: The current is the same. v (c) Is the current den ' at A2 larger, smaller, or the same? 0 The current density is larger. 0 The current density is smaller. 0 The current density is the same. J Assume A2 = 3A1. (d) Specify the radius at A2. 0.0075 x How is the area ofa circle related to its radius? mm (e) Specify the current at A2. 5.20 A (f) Specify the current density at A2. 6.62497 x Is it the current or the current density that stays the same as charge ows to a region with a different cross-sectional area? A/m2