(Solved): The figure below represents a section of a circular conductor of nonuniform diameter carrying a cur ...

The figure below represents a section of a circular conductor of nonuniform diameter carrying a current of \( l=5.50 \mathrm{~A} \). The radius of cross-section \( A_{1} \) is \( r_{1} \) a \( 0.450 \) cm. (a) What is the magnitude of the current density across \( A_{1} \) ? \( A / m^{2} \) The radius \( r_{2} \) at \( A_{2} \) is larger than the radius \( r_{1} \) at \( A_{1} \). (b) Is the current at \( A_{2} \) larger, smailer, or the same? The current is targer. The current is smaller. The current is the same. (c) Is the current densiey at \( A_{2} \) largec, smaller, or the same? The current density is larger. The current densty is smalier. The current density is the same. Assume \( A_{2}=5 A_{1} \), (d) Specify the radius at \( A_{2} \) : \( \operatorname{mm} \) (e) 5 pecify the current at \( A_{2 !} \) (i) 5 peoly the current density at \( A_{2} \) -