Practicing Success
As the temperature of iron is raised, what happens to the resistivity of the material? |
It decreases It increases It remains constant Cannot be predicted |
It increases |
ρ ∝ 1/t t : relaxation time As temperature rises, relaxation time decreases Resistivity of most metals, including iron, increases as temperature rises. This is because vibrations of the atoms in the material disrupt the flow of electrons, making it harder for electricity to pass through. |