p versus T. The figure shows the behavior of the resistivity p of a material Z as a function of temperature T. If a constant electric field is maintained inside it, which of the following statements is/are TRUE P. about the metal? I. The current density in metal Z increases with increasing tempera- ture. II. Its resistivity at T = T, is po. III. Metal Z becomes a better conductor with increasing temperature. C. I and II A. I only В. П only D. II and III

p versus T. The figure shows the behavior of the resistivity p of a material Z as a function of temperature T. If a constant electric field is maintained inside it, which of the following statements is/are TRUE P. about the metal? I. The current density in metal Z increases with increasing tempera- ture. II. Its resistivity at T = T, is po. III. Metal Z becomes a better conductor with increasing temperature. C. I and II A. I only В. П only D. II and III