4. A rectangular coil of wire (a 25.0 cm, b 46.0 cm) containing a single turn is placed in a uniform 6.00 T magnetic field, as the drawing shows. The current in the loop is 16.0 A. Determine the magnitude of the magnetic force on the right side ef the loop. N

a

m A proton moving North at 8.60 x 104 and enters a magnetic field of 1.20 T pointing out of the page 19. The magnitude and direction of the Force (Fm) on this proton would be 3.30 x 10-14 N West O 1.65 x 10-14N East 3.30 x 10-14 N East O 1.65 x 10-14N West

A circular loop of wire lies in a plane perpendicular to a magnetic field. The magnetic field has a magnitude of 1.3 T and points out of the page as shown in the figure. The radius of the loop is 18 cm and it has a resistance of 3.2 Ω. Find the induced emf in the loop of wire if the magnetic field doubles in magnitude in 1 seconds. What is the induced current in the loop? In which direction is the induced current?