Why does resistance increase with temperature?

So, when an electrical charge passes through a resistor, some of that electrical energy is transferred into heat, increasing the temperature. This extra energy causes the particles in the resistor to vibrate more. With these particles moving more, it is more difficult to for the electrons to move through the resistor. This means the current can't flow as easily and the resistance increases. 

FF
Answered by Fergus F. Physics tutor

45862 Views

See similar Physics GCSE tutors

Related Physics GCSE answers

All answers ▸

What is the difference between displacement and distance?


Compare the advantages and disadvantages of the two methods of generating electricity (figure 1 in answer):


A kettle boils 0.6kg of water. After some time the temperature of the water has decreased to 83 degrees. The specific heat capacity of water is 4200J/kg. Calculate the energy transferred to the surroundings.


What is meant by the conservation of energy?


We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

MyTutor is part of the IXL family of brands:

© 2025 by IXL Learning