A loop of wirein the plane of the floor has a clockwise current of 7.78A. The radius of the loop is 19.7cm.
A. Use the Biot SavartLaw to calculate the magnetic field at the center of the loop.
B. What is the directionof the magnetic field at the center? Explain your answer.
C. Assume the currentwas counter clockwise, then solve A & B again