a)
What is resistivity ? How does resistivity vary with
temperature ?
Answers
Answered by
1
Answer:
The resistivity of conductors increases with rise in temperature. As the temperature of the conductor increases, the average speed of the electrons acting as the current carriers increases. This in result increases the number of collisions and the average time of collisions decreases with temperature.
Answered by
1
Answer:
a measure of the resisting power of a specified material to the flow of an electric current.
The general rule is resistivity increases with increasing temperature in conductors and decreases with increasing temperature in insulators. ... As temperature rises, the number of phonons increases and with it the likelihood that the electrons and phonons will collide. Thus when temperature goes up, resistance goes up.
Similar questions