Figure 1 shows a cylindrical shell of inner radius a, outer radius in and height h. Figure 1: Conductive cylindrical shell a) if there is a potential difference between the ieft face and the right face of the cylinder and taking the left face as the reference to measure the horizontal distance x, calculate the electrical resistance presented by the material if the resistivity is considered constant, that is, p = pa, with pa a positive constant. b) Repeat the previous subsection, for the case in which the resistivity 3 varies according to the relationship p == 916) , with pa a positive constant. c) if for the case of a) you were asked to increase the electrical resistance, explain three different ways to do it, changing the parameters of the problem. d) Suppose that the cylinder in (a) increases its temperature, i.e., it heats up, increasing its radii and height by 1%. With this information, discuss the possible changes in the resistance of the cylindrical shell. Note: The following equation may be useful. de R = A |