Coil referred to is the image above

5. Consider the birdcage MRI coil in lab a6-a. As in the lab, assume the current magnitude on the nth line in the coil is given by in = io sin n: (a) Derive an expression for the magnetic field at the center of the coil. (b) Illustrate your result with a descriptive figure explaining why the field points in the direction it does. in i1 On a in = io sin on 5. Consider the birdcage MRI coil in lab a6-a. As in the lab, assume the current magnitude on the nth line in the coil is given by in = io sin n: (a) Derive an expression for the magnetic field at the center of the coil. (b) Illustrate your result with a descriptive figure explaining why the field points in the direction it does. in i1 On a in = io sin on