The figure below shows a rectangular coil of length l and width w consisting of N turns of conducting wire, moving to the right with a constant velocity v. The coil moves into a region of uniform magnetic field B, pointing into the page and perpendicular to the plane of the coil. The total resistance of the coil is R. Find the magnitude and direction of the total magnetic force on the coil for the following situations. (Use the following as necessary: N, B, w, l, v, and R.) w 139 B ***** ***** * * * * × × × × × * (a) as it enters the magnetic field * * * * * × **** * * x * × (༤) What is the induced emf in the coil? What is the current? What then is the magnetic force on the segments of the coil? Adding up the forces, what is the net force? to the left N². B².1². v magnitude F = R × direction (b) as it moves within the field The magnitude is zero. magnitude F = 0 direction (c) as it leaves the field magnitude F = direction N². B² 1². v R Review your work for part (a). What is the induced emf in the coil? What is the current? What then is the magnetic force on the segments of the coil? Adding up the forces, what is the net force? to the left

The figure below shows a rectangular coil of length l and width w consisting of N turns of conducting wire, moving to the right with a constant velocity v. The coil moves into a region of uniform magnetic field B, pointing into the page and perpendicular to the plane of the coil. The total resistance of the coil is R. Find the magnitude and direction of the total magnetic force on the coil for the following situations. (Use the following as necessary: N, B, w, l, v, and R.) w 139 B * * * * * * × × × × × * (a) as it enters the magnetic field * * * * * × **** * * x * × (༤) What is the induced emf in the coil? What is the current? What then is the magnetic force on the segments of the coil? Adding up the forces, what is the net force? to the left N². B².1². v magnitude F = R × direction (b) as it moves within the field The magnitude is zero. magnitude F = 0 direction (c) as it leaves the field magnitude F = direction N². B² 1². v R Review your work for part (a). What is the induced emf in the coil? What is the current? What then is the magnetic force on the segments of the coil? Adding up the forces, what is the net force? to the left