>
Exams
>
Physics
>
Drift Velocity
>
a copper wire of 3 mm2 cross sectional area carrie
Question:
A copper wire of 3 mm
2
cross sectional area carries a current of 5 ampere. The magnitude of the drift velocity for the electrons in the wire, (Assume copper to be monovalent, M
cu
63.5 kg/k mol and density of copper = 8920 kg/m
3
)
BCECE - 2017
BCECE
Updated On:
Sep 15, 2024
0.24 m/s
0.12 m/s
2.4 m/s
0.06 m/s
Hide Solution
Verified By Collegedunia
The Correct Option is
B
Solution and Explanation
The correct option is (B) : 0.12 m/s.
Download Solution in PDF
Was this answer helpful?
0
0
Top Questions on Drift Velocity
For a given electric current the drift velocity of conduction electrons in a copper wire is v
d
and their mobility is μ . When the current is increased at constant temperature
KCET - 2023
Physics
Drift Velocity
View Solution
The magnitude of tfie drift velocity per unit electric field is defined as
KEAM - 2021
Physics
Drift Velocity
View Solution
A copper wire of length 1 m and uniform cross sectional area 5 × 10
-7
m
2
carries a current of 1 A. Assuming that there are 8 × 10
28
free electrons per m
3
in copper, how long will an electron take to drift from one end of the wire to the other?
KCET - 2021
Physics
Drift Velocity
View Solution
A charged particle having drift velocity of
\(7.5×10^{−4} m s^{−1} \)
in an electric field of has a mobility in
\(m^2 V^{−1} s^{−1}\)
of :
NEET (UG) - 2020
Physics
Drift Velocity
View Solution
Two metallic wires 'A' and 'B' are having same cross-sectional areas and same current passes through them. Find ratio of drift velocity of electrons in wire 'A' and 'B'.
[electron density of wire A = 8.0×10
28
m
-3
and electron density of wire B = 9.0×10
28
m
-3
]
TS POLYCET - 2020
Physics
Drift Velocity
View Solution
View All
Questions Asked in BCECE exam
Instantaneous displacement current of 1.0A in the space between the parallel plates of 1μF capacitor can be established by changing the potential difference of:
BCECE - 2023
Electromagnetic waves
View Solution
What is the r.m.s value of an alternating current which when passed through a resistor produces heat, which is four times that produced by a current of 2A in the same resistor?
BCECE - 2023
Alternating current
View Solution
In the displacement method of
\(l_1\)
and
\(l_1\)
be the sizes of two images, then the size of the object is:
BCECE - 2023
Ray optics and optical instruments
View Solution
A beaker is a field with water (μ=
\(\frac{4}{3}\)
) up to a height of 33.25cm. A concave mirror is placed 15 cm above the water level and the image of an object placed at the bottom is formed 25cm below the water level. The focal length of the mirror is nearly :
BCECE - 2023
Ray optics and optical instruments
View Solution
An air doubble is inside water (μ=
\(\frac{4}{3}\)
). At what distance from the air bubble should a point object be placed so as to form a real image at the same distance from the dubble? (r is the radius of curvature of the bubble)
BCECE - 2023
Ray optics and optical instruments
View Solution
View More Questions