Long, straight conductors with square cross sections and each carrying current I are laid side by side to form an infinite current sheet . The conductors lie in the xy plane, are parallel to the y-axis, and carry current in the y- directionThere are n conductors per unit length measured along the x-axis. no title provided
Part A
What are the magnitude of the magnetic field a distance a below the current sheet?
Express your answer in terms of the variables I, n, a and appropriate constants (mu_0 and ?).
Part B
What are the magnitude of the magnetic field a distance a above the current sheet?
Express your answer in terms of the variables I, n, a and appropriate constants (mu_0 and ?).