The figure below represents a section of a circular conductor of nonuniform diameter carrying a current of I=5.10A. The radius of cross-section A1 is r1=0.390cm. (a) What is the magnitude of the current density across A1 ? A)m2 The radius r2 at A2 is larger than the radius r1 at A1. (b) Is the current at A2 larger, smaller, or the same? The current is larger. The current is smaller. The current is the same. (c) Is the current density at A2 larger, smaller, or the same? The current density is larger. The current density is smaller. The current density is the same