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QB A long straight cylindrical wire (radius Ri) and a metal cylinder (Radius Ra) coaxial with it form a cylindrical capa
Posted: Wed May 18, 2022 5:06 pm
by answerhappygod
- Qb A Long Straight Cylindrical Wire Radius Ri And A Metal Cylinder Radius Ra Coaxial With It Form A Cylindrical Capa 1 (250.57 KiB) Viewed 45 times
QB A long straight cylindrical wire (radius Ri) and a metal cylinder (Radius Ra) coaxial with it form a cylindrical capacitor as shown in Figure 1. The interior is two dielectrics of relative permittivity & (right side) and 42 (left side). The cylindrical wire has total amount of charge Q. The Length of the cylindrical wire is L. R Ey 2 Figure 1 (a) Calculate the electric field, flux density and polarization intensity in the dielectrics: (10 marks) (b) Calculate the potential difference U between the cylindrical wire and cylinder: (4 marks) (c) Calculate the polarization surface charge density o' on the surface of Ri: (6 marks) (d) Calculate the free surface charge density o on the surface of Ri: (6 marks) (e) Calculate the capacitance 4 marks