Current Electricity Charging Discharging Of Capacitors Question 373

Question: A potential difference of V is applied at the ends of a copper wire of length l and diameter d. On doubling only d, drift velocity

[MP PET 1995]

Options:

A) Becomes two times

B) Becomes half

C) Does not change

D) Becomes one fourth

Show Answer

Answer:

Correct Answer: C

Solution:

Drift velocity $ v _{d}=\frac{V}{\rho ,l,n,e};v _{d} $ does not depend upon diameter.