Current Electricity Charging Discharging Of Capacitors Question 332
Question: Drift velocity $ v _{d} $ varies with the intensity of electric field as per the relation
[CPMT 1981; BVP 2003]
Options:
A) $ v _{d}\propto E $
B) $ v _{d}\propto \frac{1}{E} $
C) $ v _{d}=\text{constant} $
D) $ v _{d}\propto E^{2} $
Show Answer
Answer:
Correct Answer: A
Solution:
$ v _{d}=\frac{e}{m}\times \frac{V}{l}\tau $ or $ v _{d}=\frac{e}{m}.\frac{El}{l}\tau $ (Since $ V=El) $
$ \
Therefore v _{d}\propto E $
BETA
