Question
In: Electrical Engineering
Consider the cylindrical wire of radius R= 5mm having current density through a cross section varies...
Consider the cylindrical wire of radius R= 5mm having current
density through
a cross section varies with radial distance ‘r’ as J= (3x 109 A/m4
) r2 , and ‘r’ is
in meters. What is the current through the outer portion of the
wire between
radial distances r=0.75R and r=R.
Solutions
Manojponduru answered 4 days agoRelated Solutions
Consider a cylindrical wire of radius R (indefinitely long) that carries a total steady current I...
Consider a cylindrical wire of radius R (indefinitely long) that
carries a total steady current I such that there is a constant
current density j across the profile of the wire (for the first
part of this task, consider just a current density in vacuum)
a) in order to calculate the magnetic induction it is suitable
to work in cylindrical coordinates. Considering Boundary conditions
at ρ→∞, the magnetic induction ca be written as B=B_ρ (ρ,φ,z) e_ ρ
+ B_ φ(ρ,φ,z)e_...
Consider a cylindrical wire of radius R (indefinitely long) that carries a total steady current I...
Consider a cylindrical wire of radius R (indefinitely long) that
carries a total steady current I such that there is a constant
current density j across the profile of the wire (for the first
part of this task, consider just a current density in vacuum)
a) in order to calculate the magnetic induction it is suitable
to work in cylindrical coordinates. Considering Boundary conditions
at ρ→∞, the magnetic induction ca be written as B=B_ρ (ρ,φ,z) e_ ρ
+ B_ φ(ρ,φ,z)e_...
The current density inside a long, solid, cylindrical wire of radius a = 5.0 mm is...
The current density inside a long, solid, cylindrical wire of
radius a = 5.0 mm is in the direction of the central axis
and its magnitude varies linearly with radial distance r
from the axis according to J =
J0r/a, where
J0 = 220 A/m2. Find the magnitude of
the magnetic field at a distance (a) r=0, (b) r = 2.7 mm
and (c) r=5.0 mm from the center.
2) a). The resistivity of a wire varies with its length area of cross-section mass material...
2) a). The resistivity of a wire varies with its
length
area of cross-section
mass
material
b) Given the units of a physical quantity. Choose the correct
relation (J is for Joule, V is for volt, C is for Coulomb)
A) J = CV
B) J = VA
C) J = C/A
D) V = J C
c) A charge of 3 C moving in a uniform electric field
experiences a force 3000 N. The potential difference between two
points...
The figure shows a cross section across a long cylindrical conductor of radius a = 2.97...
The figure shows a cross section across a long cylindrical
conductor of radius a = 2.97 cm carrying uniform current 27.5 A.
What is the magnitude of the current's magnetic field at radial
distance (a) 0, (b) 2.10 cm, (c) 2.97 cm (wire's surface), (d)3.84
cm?
consider a charge Q distributed through out a sphere of radius R with a density: rho=...
consider a charge Q distributed through out a sphere of radius R
with a density: rho= A(R-r) where rho is in Coulombs/m^3
0<r<R
determine the constant A in terms of Q and R
Calculate the electric field inside and outside of the
sphere
The inside of a wire has a current density of J (r) = ( 5 /...
The inside of a wire has a current density of J (r) = ( 5 / r )
A/m2
radius of wire = 0.15
m
Find magnitude of
magnetic field when at a radial distance of 0.05 m away using
Ampere's Law.
What is the current in a wire of radius R = 3.58 mm if the magnitude...
What is the current in a wire of radius R = 3.58 mm if the
magnitude of the current density is given by (a) Ja = J0r/R and (b)
Jb = J0(1 - r/R) in which r is the radial distance and J0 = 5.08 ×
10^4 A/m^2? (c) Which function maximizes the current density near
the wire’s surface?
Consider a wire of uniform density and mass M shaped into a quarter circle of radius...
Consider a wire of uniform density and mass M shaped into a
quarter circle of radius R.The wire is located in the xy plane,
with the origin at the focus of the quarter circle (i.e at the
center of the circle of which the wire is part). Choose the x axis
parallel to the line that connects the endpoints of the wire, so
that the y-z plane is a plane of reflection symmetry for the wire.
This means that the...
A circular loop of wire having a radius of 6.0 cm carries a current of 0.14...
A circular loop of wire having a radius of
6.0 cm carries a current
of 0.14 A. A unit vector
parallel to the dipole moment of the loop is given by 0.40i -0.92j.
If the loop is located in a magnetic field given by B =
(0.40 T)i + (0.35
T)k,
A) find the magnitude of the magnetic dipole
moment of the loop.
B) Find the i component
of the torque on the loop.
C) Find the j component
of...
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