A long, cylindrical wire with a radius of R carries a charge density of ρ = ks^2. Find the electric field inside and outside of the wire. This questions is theory based
A long, cylindrical wire with a radius of R carries a charge density of ρ =...
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...
2. (3 pts) A solid cylindrical wire of radius R carries uniform current density. Use Ampere's Law to calculate the magnetic field inside and outside the wire. Sketch your result as a function of distance r from the center.
8. A long coaxial cable (Fig 2b ) carries a uniform volume darge density ρ on the inner cylinder (radius a), and a uniform surface charge density ơ on the outer cylindrical shell (radius b. This surface charge is negative and of just the right magnitude so that the cable as a whole is electrically nt Find the electric field in each of the three regions:) inside the nnr cylinder (s < a), (ii) between the cylinders (a < s...
Consider an infinitely long straight cylinder of radius R and uniform positive charge density ρ. (a) Find the field inside the cylinder a distance r < R from the center. (b) Find the field outside the cylinder a distance r > R from the center. (c) Sketch a plot of E vs r over the range 0 ≤ r ≤ 2R.
Two infinitely long cylindrical layers of surface charge density exist at ρ = a, (a) (b) Find the electric field everywhere: (i) ρ < a, (ii) a < ρ < b, (iii) ρ > b. Under what condition is the electric field zero for ρ > b?
Charge is distributed throughout a spherical volume of radius R with a density ρ ar where α is a constant. an risthe distance from the center of the sphere. Determine the electric field due to the charge at a point a distance r from the center that is inside the sphere, and at a point a distance r from the center that is outside the sphere. (Enter the radial component of the electric field. Use the following as necessary: R,...
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?
1. A very long, uniformly charged cylinder has radius R and charge density \rho. Determine the electric field of this cylinder inside (r<R) and outside (r>R)2. A large, flat, nonconducting surface carries a uniform surface charge density σ. A small circular hole of radius R has been cut in the middle of the sheet. Determine the electric field at a distance z directly above the center of the hole.3. You have a solid, nonconducting sphere that is inside of, and...
A solid insulating sphere of radius R has a non-uniform charge density ρ = Ar2 , where A is a constant and r is measured from the center of the sphere. a) Show that the electric field outside the sphere (r > R) is E = AR5 /(5εor 2 ). b) Show that the electric field inside the sphere (r < R) is E = AR3 /(5εo). Hint: The total charge Q on the sphere is found by integrating ρ...
A long, cylindrical wire of radius R has a current density J(r) = Jo(1 – r2/R2) for distances where r < R and J(r) = 0 for r < R where r is the distance from the center of the wire’s axis. Find the magnetic field strength inside (r < R) and outside (r > R) the wire. Sketch the magnetic field strength as a function of distance r from r = 0 to r = 2R. Find the location...