Question#2 A circular loop has radius R and carries current ly in a clockwise direction. The center of the loop is a distance D above a long, straight wire. Part A What is the magnitude of the current _ in the wire if the magnetic field at the center of the loop is zero? Express your answer in terms of the variables J2, R. D, and appropriate constants (fig and ). ANSWER Part B What is the direction of the current /1 7 ANSWER O The current In must point to the right. O The current /1 must point to the left