One long wire lies along an x axis and carries a current of 39 A in the positive x direction. A second long wire is perpendicular to the xy plane, passes through the point (0, 4.6 m, 0), and carries a current of 43 A in the positive z direction. What is the magnitude of the resulting magnetic field at the point (0, 1.4 m, 0)? Number i Units

The magnitude of the magnetic field a distance of l away from a long, straight current carryingwire is B. How far from the wire is the magnitude of the magnetic equal to 1/2B?

Chapter 28, Problem 020 An electron is accelerated from rest through potential difference V and then enters a region of uniform magnetic field, where it undergoes uniform circular motion. The figure gives the radius r of that motion versus V¹/2. The vertical axis scale is set by rs= 4.0 mm, and the horizontal axis scale is set by V¹/2= 32.9 V¹/2. What is the magnitude of the magnetic field? r (mm) VI/2 V¹/2 (¹/2)

One long wire lies along an x axis and carries a current of 38 A in the positive x direction. A second long wire is perpendicular to the xy plane, passes through the point (0, 4.3 m, 0), and carries a current of 64 A in the positive z direction. What is the magnitude of the resulting magnetic field at the point (0, 0.60 m, 0)? Number i Units