1
You visited us
1
times! Enjoying our articles?
Unlock Full Access!
Byju's Answer
Standard XII
Physics
Electric Field Due to a Sphere and Thin Shell
When no curre...
Question
When no current is passed through a conductor
A
the free electrons do not move
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
the average speed of a free electrons over a large speed of time is zero
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
the average velocity of a free electron over a large period of time is zero
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
the average of the velocities of all the free electrons at an instant is zero
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
Open in App
Solution
The correct option is
D
the average of the velocities of all the free electrons at an instant is zero
When no current is passed through a conductor.
The average of the velocities of all the free electrons at an instant is zero.
V
=
0
flow is not held, the current is zero.
Suggest Corrections
0
Similar questions
Q.
Assertion :Free electrons always keep on moving in a conductor even when no magnetic force act on them in a magnetic field unless a current is passed through it. Reason: The average velocity of free electron is zero.
Q.
A current of
16
A
is made to pass through a conductor in which the number density of free electrons is
4
×
10
28
m
−
3
and its area of cross section is
10
−
5
m
2
. The average drift velocity of free electrons in the conductor is:
Q.
A 2-ampere current flows in a conductor which has
1
×
10
24
free electrons per meter. What is their average drift velocity?
Q.
The number of free electrons per
10
m
m
of an ordinary copper wire is about
2
×
10
21
. The average drift speed of the electrons is
0.25
m
m
/
s
e
c
. The current flowing is
Q.
The number of free electrons per
10
mm ordinary copper wire is about
2
×
10
21
. The average drift speed of the electrons is
0.25
mm current flowing is:
View More
Join BYJU'S Learning Program
Grade/Exam
1st Grade
2nd Grade
3rd Grade
4th Grade
5th Grade
6th grade
7th grade
8th Grade
9th Grade
10th Grade
11th Grade
12th Grade
Submit
Related Videos
Gauss' Law Application - Electric Field Due to a Sphere and Thin Shell
PHYSICS
Watch in App
Explore more
Electric Field Due to a Sphere and Thin Shell
Standard XII Physics
Join BYJU'S Learning Program
Grade/Exam
1st Grade
2nd Grade
3rd Grade
4th Grade
5th Grade
6th grade
7th grade
8th Grade
9th Grade
10th Grade
11th Grade
12th Grade
Submit
AI Tutor
Textbooks
Question Papers
Install app