As temperature increases, the resistance of a material typically increases as well. This is because the atoms in a material vibrate more at higher temperatures, causing more collisions with electrons and making it harder for them to flow through the material.
The relationship between temperature and resistance is typically linear. This means that as temperature increases, resistance also increases in a predictable and proportional manner.
The increase in resistance with temperature is due to the increase in collisions between atoms and electrons. This phenomenon is known as thermal agitation and it makes it more difficult for electrons to flow through the material, resulting in higher resistance.
The type of material can greatly affect the dependence of resistance on temperature. Some materials, such as metals, have a positive temperature coefficient, meaning their resistance increases with temperature. Other materials, like semiconductors, have a negative temperature coefficient, meaning their resistance decreases with temperature.
The dependence of resistance on temperature is used in a variety of practical applications. For example, it is used in thermistors, which are temperature-sensitive resistors used for temperature measurement and control. It is also used in circuit protection devices, such as fuses and circuit breakers, which use the increase in resistance with temperature to prevent damage to electronic components.
