Current Electricity Charging Discharging Of Capacitors Question 333
Question: On increasing the temperature of a conductor, its resistance increases because
[CPMT 1982]
Options:
A) Relaxation time decreases
B) Mass of the electrons increases
C) Electron density decreases
D) None of the above
Show Answer
Answer:
Correct Answer: A
Solution:
Resistance of conductor depends upon relation as $ R\propto \frac{1}{\tau } $ . With rise in temperature rms speed of free electron inside the conductor increase, so relaxation time decrease and hence resistance increases
BETA
