A very long wire is carrying a current 61 = HO (27 + 2) I I and the circular loop has radius r and is 1. BAT r carrying a current i2 = 21, (1 > 0), in the directions shown. You may assume the circle 2. B = HO (47 - 2) 1 of the loop is almost touching the wire so that 4 T r the perpendicular distance from the wire to the center of the loop is r. 3. B = HO (2TT - 2) I AT r O 4. B = HO (47 + 2) I 4 T r HO (7 + 1) I 5. BAT r Find the magnitude of the magnetic field B 0 6. B = Ho I at the center of the circular loop. 2 TT O7. B = HO I 2r 0 8. B = HO (7 - 1) I 4 T r