One long wire lies along an x axis and carries a current of 42 A in the positive x direction. A second long wire is perpendicular to the xy plane, passes through the point (0, 6.2 m, 0), and carries a current of 58 A in the positive z direction. What is the magnitude of the resulting magnetic field at the point (0, 0.90 m, 0)? Number i Units

In the figure, point P2 is at perpendicular distance R = 26.0 cm from one end of straight wire of length L = 13.0 cm carrying current i = 0.849 A. (Note that the wire is not long.) What is the magnitude of the magnetic field at P2? P P R R L. Number i 4.245 Units

Each of two long straight parallel wires 8 cm apart carries a current of 125 A. The figure shows a cross section, with the wires running perpendicular to the page and point P lying on the perpendicular bisector of the line between the wires. Find the magnitude and direction of the magnetic field at P when the current in the left-hand wire is out of the page and the current in the right-hand wire is into the page. What is the magnitude of B? What is the value of By? What is the value of Bz?

In the figure, point P2 is at perpendicular distance R = 29.1 cm from one end of straight wire of length L = 13.9 cm carrying current i = 0.943 A. (Note that the wire is not long.) What is the magnitude of the magnetic field at P2? R R L. Number Units Use correct number of significant digits; the tolerance is +/-2%