Home
Class 12
PHYSICS
The drift speed of an electron in a meta...

The drift speed of an electron in a metal is in the order of ??

A

`10^(-13)` m/s

B

`10^(-3)` mm/s

C

`10^(-4)` m/s

D

`10^(-30)` m/s

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Similar Questions

Explore conceptually related problems

A wire of length l and area A is connected to an ideal battery . The drift speed of electrons is v. If the wire is twisted to half its length, what will be the new drift speed ?

The drift velocity of electron in a metal conductor under effective of elecrtic field applied is

Assertion : The drift velocity of electrons in a metallic wire will decrease, if the temperature of the wire is increased. Reason : On increasing temperature, conductivity of metallic wire decreases.

Assertion : The drift velocity of electrons in a metallic wire will decrease, if the temperature of the wire is increased. Reason : On increasing temperature, conductivity of metallic wire decreases.

Assertion : The electric bulbs glows immediately when switch is on. Reason : The drift velocity of electrons in a metallic wire is vary high.

The drift speed of electrons in copper wire of diameter and length l is v . If the potential difference across the wire is doubled, then the new drift speed becomes