In the figure below, a long circular pipe with outside radius R = 2.5 cm carries a (uniformly distributed) current = 7.60 mA into the page. A wire runs parallel to the pipe at a distance of 3.00R from center to center. Find the magnitude and direction of the current in the wire such that the net magnetic field at point P has the same magnitude as the net magnetic field at the center of the pipe but is in the opposite direction. magnitude direction mA ---Select--- Wire O- R P. O Pipe In the figure below a 120-turn coil of radius 1.8 cm and resistance 5.9 is coaxial with a solenoid with 239 turns/cm and diameter 3.2 cm. The solenoid current drops from 1.5 A to zero in time interval At = 25 ms. What current is induced in the coil during At? A Solenoid Coil