A)
Yes, current density is uniform
B)
Current, I = (5/4) Is = 1.25 x 5 = 6.25 mA
rs2 = 5.3 mm^2 = 5.33 x 10^-6 m^2
Slope = 0.00625/0.00000533 = 1172.61 A/m^2
Current density, J = 1172.61/pi = 373.25 A/m^2
Comment in case any doubt please rate my answer....
A certain cylindrical wire carries current. We draw a circle of radius r around its central...
Chapter 26, Problem 006 Your answer is partially correct. Try again. A certain cylindrical wire carries current. We draw a circle of radius r around its central axis in Figure (a) to determine the current i within the circle. Figure (b) shows current i as a function of r2. The vertical scale is set by is = 4.2 mA, and the horizontal scale is set by G2-4.6 mm2. (a) Is the current density uniform? (b) If so, what is its...
A certain cyingncal wire carries ourrent. We draw a orcle of radus r around Rs central asis in Figure (a) to determine the current/within the orcle Frigure (b) shows current /as a unction of sset by 44 mA, and the horisontal scale is set by 2 4.0 mm2 (o) Is the current density unferm (b) It so, what is its magnitute (b) Numbe1100 y Study
A long, hollow, cylindrical conductor (inner radius 3.4 mm, outer radius 4.6 mm) carries a current of 49 A distributed uniformly across its cross section. A long thin wire that is coaxial with the cylinder carries a current of 52 A in the opposite direction. What is the magnitude of the magnetic field (a) 1.0 mm, (b) 3.5 mm, and (c) 5.3 mm from the central axis of the wire and cylinder? Number Units Number Units Number Units
A straight, cylindrical wire of radius 12.3 mm carries a uniformly spread current over its cross-sectional area at 17.5 A. How far in mm from the central axis will you find a point where the magnetic field has a magnitude of 0.1 mT while only considering points within the wire?
A cylindrical copper wire, whose radius is r = 0.0444 mm, carries a current of I = 3.33 A. The resistivity of copper is ρ = 1.68 × 10 − 8 Ω ⋅ m. What is the magnitude of the electric field in the wire?
A cylindrical copper wire, whose radius is r = 0.0444 mm, carries a current of I = 3.33 A. The resistivity of copper is p=1.68 x 10-812.m. What is the magnitude of the electric field in the wire?
An infinitely long, straight, cylindrical wire of radius R carries a uniform current density J. Using symmetry and Ampere's law, find the magnitude and direction of the magnetic field at a point inside the wire. For the purposes of this problem, use a cylindrical coordinate system with the current in the +z-direction, as shown coming out of the screen in the top illustration. The radial r-coordinate of each point is the distance to the central axis of the wire, and...
A cylindrical non-magnetic wire, radius R, carries a uniform steady current I. Find H inside and outside the wire. If the current is 30 kA, what is the field in T at a distance of 1 m?
A segment of wire has a radius R= 27 mm and length L = 39 cm that carries a uniform current density J = 470 A/m2. What is the current i, flowing through a circular loop of radius r = 18.5 mm offset from the central axis of the wire by d = 3.5 mm? Express your answer using one decimal place. You answer should be in mA.
A long, hollow, cylindrical conductor (inner radius 2.0 mm, outer radius 4.0 mm) carries a current of 49 A distributed uniformly across its cross section. A long thin wire that is coaxial with the cylinder carries a current of 55 A in the opposite direction. What is the magnitude of the magnetic field (a) 1.2 mm. (b) 2.1 mm, and (c) 4.0 mm from the central axis of the wire and cylinder?