A potential difference is applied across the | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(A) The drift velocity $v_d$ of electrons in a conductor is given by the formula: $v_d = \frac{eE	au}{m}$,where $e$ is the charge of an electron,$E$

Vedclass · Accepted Answer

Will be doubled

Vedclass · Answer

(A) The drift velocity $v_d$ of electrons in a conductor is given by the formula: $v_d = \frac{eE	au}{m}$,where $e$ is the charge of an electron,$E$ is the electric field,$	au$ is the relaxation time,and $m$ is the mass of the electron.Since the electric field $E = \frac{V}{L}$,where $V$ is the potential difference and $L$ is the length of the wire,we can substitute this into the drift velocity equation:$v_d = \frac{eV	au}{mL}$.From this expression,it is clear that the drift velocity $v_d$ is directly proportional to the potential difference $V$ $(v_d \propto V)$.Therefore,if the potential difference $V$ is doubled,the drift velocity $v_d$ will also be doubled.

$A$ potential difference is applied across the ends of a metallic wire. If the potential difference is doubled,then the drift velocity

Similar Questions

The speed of sound in oxygen $(O_2)$ at a certain temperature is $460 \; m/s$. The speed of sound in helium $(He)$ at the same temperature will be (assume both gases to be ideal): (in $; m/s$)

The reactivity of borazole is higher than that of benzene because ...

The compound which has one isopropyl group is:

The diagram represents Miller's experiment. Choose the correct combination of labelling.

If $3$ is a root of $x^2+kx-24=0$,then it is also a root of which of the following equations?

Vedclass Test Series

Exam Paper Generator

Online Exam Module