4. The figure shows a uniform, 3.0-T magnetic field that is normal to the plane of a conducting circular loop with a resistance of 1.5 ohms and a radius of 0.024 m. The magnetic field is directed into the paper as shown. What is the average current around the loop while the magnitude of the magnetic field is doubled in 0.40 s? a. 9.0 x 10 3 A, counterclockwise b. 28 x 10 1 A; clockwise CCW e. - 4.5x 10 3 A, counterclockwise Bext d. 9.0 x 10 3 A, clockwise Bind -e. - 4.5 x 10 3 A, clockwise 575 71 a obx10-3