TEMPERATURE EFFECT OF RESISTEVITY 

• In a conductor resistivity increasing due to linear expansion
• Linear expansion of resistivity:- When conductor not changed change in resistivity is directly proportional to its original resistivity as well as directly proportional to temperature difference.

                                 

• Rise in Temperature:- If resistivity at zero degree Celsius is Po,  Find the resistivity at T degree Celsius Pt :-  

                                 

• Cooling in Temperature:- If resistivity at T degree Celsius is Pt,  Find the resistivity at zero degree Celsius Po :-  

                                  

• Find the relation between thermal coefficient   two different temperature in term of resistivity:-

                                

• Find the relation between Resistivity at  two different temperature but  Thermal  coefficient  given at zero degree Celsius  :-