Acoaxial line of inner radius a and outer radius b is filled with a material characterized by a permittivity e and a conductivity o. find the conductance and resistance from the equivalent circuit of this system when it is connected to a de battery. assume 1»b> a.

The power source in a certain welding setup generates 3500w that is transferred to the low carbon steel work with a heat transfer factor of 0.85. the melting factor in the operation is 0.45. a continuous fillet weld is to be made with a cross-sectional area of 23 mm2 determine the travel speed at which the welding can be accomplished.