Two long, parallel wires carry currents of I1 = 3.00 A and I2 = 5.00 A in the direction indicated in the figure P19.50. (a) find the magnitude and direction  of the magnetic field at a point midway between the wires (d= 20.0 cm). (b) Find the magnitude and direction of the magnetic field at point P, located d = 20.0 cm above the wire carrying the 5.00-A current.

Your answer is partially correct. One long wire lies along an x axis and carries a current of 57 A in the positive x direction. A second long wire is perpendicular to the xy plane, passes through the point (0, 7.2 m, 0), and carries a current of 45 A in the positive z direction. What is the magnitude of the resulting magnetic field at the point (0, 2.0 m, 0)? Number i 0.000005956 Units PT

AS0.0-g metal ball having net charge Q = 5.50 µC is thrown out of a window horizontally north at a speed v = 22.0 m/s. The window is at a height h = 18.0 m above the ground. A uniform, horizontal magnetic field of magnitude B = 0.0100 T is perpendicular to the plane of the ball's trajectory and directed toward the west. (a) Assuming the ball follows the same trajectory as it would in the absence of the magnetic field, find the magnetic force acting on the ball just before it hits the ground. (Let the +x-direction be toward the north, the +y-direction be up and the +z-direction be east.) B. (b) Based on the result of part (a), is it justified for three-significant-digit precision to assume the trajectory is unaffected by the magnetic fleld? O Yes O No Explain.

In the figure, point P₂ is at perpendicular distance R = 24.1 cm from one end of straight wire of length L = 13.4 cm carrying current i = 0.916 A. (Note that the wire is not long.) What is the magnitude of the magnetic field at P₂? P₁ Pa R R