In the figure, four long straight wires are perpendicular to the page, and their cross sections form a square of edge length a = 19 cm. The currents are out of the page in wires 1 and 4 and into the page in wires 2 and 3, and each wire carries 16 A. What is the magnitude of the net magnetic field at the square's center? 3

A wire carries current 0.500 A out of the page as shown. What is the magnetic field y direction at point P? P right down left up

A wire carries a 5.78-A current along the x axis, and another wire carries a 2.18-A current along the y axis, as shown in the figure below. What is the magnetic field at point P, located at x = 4.00 m, y = 3.00 m? 0.138 Use the expression for the magnetic field around a current-carrying wire to find the magnitude and direction of the magnetic field contribution from each of the two currents. UT magnitude direction out of the page y (4.00, 3.00) m

In the figure, four long straight wires are perpendicular to the page, and their cross-sections form a square of edge length a = 15.0 cm. Each wire carries 7.50 A, and the currents are out of the page in wires 1 and 4 and into the page in wires 2 and 3. In unit-vector notation, what is the net magnetic force per meter of wire length on wire 4?