(8%) Problem 9: An electric current is flowing through a long cylindrical conductor with radius a - 0.25 IA m. The current density J= 4.5 A/m is uniform in the cylinder. In this problem we consider an imaginary a cylinder with radius r around the axis AB. Randomized Variables a = 0.25 m J=4.5 A/m- MITT IB Otheexpertta.com A 14% Part (a) When r is less than a, express the current inside the imaginary cylinder in terms of r and J. 4 14% Part (b) Express B in terms of J and r. A 14% Part (c) Forr = 0.5 a, calculate the numerical value of B in Tesla. 14% Part (d) When r is greater than a, express the current inside the imaginary cylinder in terms of r, a and J. 4 14% Part (e) Express the magnitude of the magnetic field, B, at r > a in terms of I and r. A 14% Part (f) Express B in terms of J, a and r. D A 14% Part (g) Forr = 2 a, calculate the numerical value of B in Tesla. B(r=2a) Grade Summary Deductions 0% Potential 100% sin()