Question

Chapter 29, Problem 029 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 17 A. What is the magnitude of the net magnetic field at the square's center? Number Units Chapter 29, Problem 062 In the figure, current i-35.9 mA is set up in a loop having two radial lengths and two semicircles of radii a = 4.28 cm and b 11.2 cm with a common center P. what are the (a) magnitude and (b) direction (into or out of the page) of the magnetic field at P and the (c) magnitude and (d) direction (into or out of the page) of the loop's magnetic dipole moment? (a) Number Units (c) Number Units

Answer 1

2 we new that magnutic fild due to wi a intinite length carrying anytuent tata-distance h.こμ,1 Sinu, the cutvrents and distanc aru sanm in au thu casus But the dirustion wiu be ao sherwn above tude s net maartic field at entre 2 edne to 1 at 0 = Mole- 4 Plane