The electric field everywhere on the surface of a thin, spherical shell of radius 0.785 m is of magnitude 880 N/C and points radially toward the center of the sphere. (a) What is the net charge within the sphere's surface? X If a positive charge exists inside the sphere, what direction would the electric field point outside the sphere? nC A solid sphere of radius 40.0 cm has a total positive charge of 28.5 uC uniformly distributed throughout its volume. Calculate the magnitude of the electric field at the following distances. (a) 0 cm from the center of the sphere 0 y kN/C (b) 10.0 cm from the center of the sphere 4.00792 y kN/C (c) 40.0 cm from the center of the sphere 1.6e3 kN/C (d) 59.0 cm from the center of the sphere 2.3623 3' Would the field at this point be affected if the charge were moved to a point at the origin? kN/C 4. [1 /2 Points] PREVIOUS ANSWERS SERPOP5 22.P.027.W|. ASK YOUR TEACHER PRACTICE ANOTHER A current of 15.0 mA is maintained in a single circular loop of 3.10 m circumference. A magnetic field of 0.790 T is directed parallel to the plane of the loop. (a) Calculate the magnetic moment of the loop. 11.475 v mA - m2 (b) What is the magnitude of the torque exerted by the magnetic field on the loop? 9.6696 x What is the direction of the magnetic moment defined relative to the plane of the current loop? mN - m Need Help? Submit Answer 5. [0/1 Points] PREVIOUS ANSWERS SERPOPS 22.P.029.W|. Calculate the magnitude of the magnetic field at a point 44.5 cm from a long, thin conductor carrying a current of 3.10 A. 6.97e-7 x What is the equation giving the magnetic field of a long, current-carrying wlre? T Need Help? _ ASK YOUR TEACHER PRACTICE ANOTHER Submit Answer 6. [2/4 Points] PREVIOUS ANSWERS SERPOPS 22.P.O47.W|. ASK YOUR TEACHER PRACTICE ANOTHER The figure below Is a cross-sectional View of a coaxial cable. The center conductor Is surrounded by a rubber layer, an outer conductor, and another rubber layer. In a particular application, the current in the inner conductor is I1 = 1.14 A out of the page and the current in the outer conductor is 12 = 3.06 A into the page. Assuming the distance d = 1.00 mm, answer the following. (a) Determine the magnitude and direction of the magnetic eld at point a. magnitude :1 x If you construct an imaginary circle of radius d passing through point a, how much current passes through this circle? pT direction upward v .y (b) Determine the magnituce and direction of the magnetic field at point b. 3 magnitude : x You can approac1 this problem by finding the field produced by current I1 and the field produced by 1'2 and then adding them vectorially. pT