Question

hello, this is electromagnetics class

I want to help me with all of these five questions please with a clear picture and step and clear written.

thank you

11.The vanishingly thing circular cylindrical shell to the right carries a surface current of J-12 A/m directé out of the page in the + direction. If the radius of the cylinder is b 0.5m, what is the total current directed out of the page? J 10A None of the others 5 A a. b. c. d. 10r A 12T A maanatie field inst belw the e. 12TA 12. If one of the normal vectors to an interface is h=(6-6 ) and the magnetic field just below the interface is H, 6i-2y+32, what is the vector part of H, normal to the interface? a. In b. Hi4(-) c. (9-9)" H d. None of the others. e. 13. Shown to the right, in perspective cross-section, is an N-turn toroidal coil (wire wrapped around a solid disk-like core) whose core is filled with material with . The rectangular cross-section of the toroid is hx(b-a). On the axis of the toroid is an infinite wire conductor. What is the mutual inductance of the infinite wire and N-turn toroid assuming that N-18, b=0.5m, and a 0.01m? 0.54, In (5) Infinite Wire a. b. None of the others Turns (18/T) 4, In (500) d. (162/)4, In (50) (9/#)4, In 50 c. e. pab Toroid with N turns 14. Shown to the right is an annular disc of uniform surface charge p,. The annular disc is in the z h plane and charge resides on it in the range of a s psb and 0ss2r. What is the correct differential surface element ds' for the annular disc assuming you're going to find the electric field (using an integral expression based on Coulumb's law)? ds' add'dp (a) b (b) None of the others P. (c) d-pdpdφ ds' do'dz h (d) (e) 3 15. Shown to the right is an annular disc of uniform surface charge p. The annular disc is in the z h plane and the constant charge resides on it in the range of aspsb and 0ss27. If the observation point is at z-0 what is the correct expression for R=|r-r' that appears in the denominator of the electric field integral expression? h V(b-a) +h P. (a) None of the others (b) (c) h ν(o-a+H NP+h (d) (e) The annular dise is in the zh plane and the OD

Answer 1

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