Question

Explain the variation of resistance and resistivity with temperature and hence define temprature

Answer 1

The variation of resistance and resistivity with temperature

• On considering some materials such as silver ,aluminium, copper consists of number of free electron s flowing through it
• this type of materials conduct current easily that means that they are very less reactive
• But the resistivity of the material highly depend upon the temperature .
• Thus this explains that the metals offer more electrical resistance if temperature is increased
• On the other hand in non metals if the temperature is increased the resistance is decreases

Temperature

•  The temperature is a physical property that expresses the degree or intensity of a heat in a substance or matter.