e figure below represents a section of a circular conductor of nonuniform diameter carrying a current of I = 5.40 A. The radius of cross-section A₁ is ₁ = 0.360 cm. A₁ (a) What is the magnitude of the current density across A₁? A/m² e radius ₂ at A₂ is larger than the radius ₁ at A₁. (b) Is the current at A₂ larger, smaller, or the same? O The current is larger. O The current is smaller. O The current is the same. (c) Is the current density at A₂ larger, smaller, or the same? O The current density is larger. O The current density is smaller. O The current density is the same. sume A₂ = 34₁. A2 (d) Specify the radius at A₂. mm (e) Specify the current at A₂. (f) Specify the current density at A₂. A/m²

e figure below represents a section of a circular conductor of nonuniform diameter carrying a current of I = 5.40 A. The radius of cross-section A₁ is ₁ = 0.360 cm. A₁ (a) What is the magnitude of the current density across A₁? A/m² e radius ₂ at A₂ is larger than the radius ₁ at A₁. (b) Is the current at A₂ larger, smaller, or the same? O The current is larger. O The current is smaller. O The current is the same. (c) Is the current density at A₂ larger, smaller, or the same? O The current density is larger. O The current density is smaller. O The current density is the same. sume A₂ = 34₁. A2 (d) Specify the radius at A₂. mm (e) Specify the current at A₂. (f) Specify the current density at A₂. A/m²

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

See similar textbooks

Similar questions

qs1
hw6 A current of I = 1.4 A is passing through a conductor with cross sectional area A = 4.5 × 10-4 m2. The charge carriers in the conductor, electrons, have a number density n = 9.7 x 1027 m-3. Calculate the numerical value of v, in m/s.
A В a +x The figure shows a piece of conductor with length c. It has a rectangular cross section having side lengths a and b. The curent carried by the conductor along the +æ direction is I. The charge carriers are electrons with charge -e and have density n. The a-components of the electric field and the current density are denoted as E, and Jz, respectively. Data: Jz = 3.2 x 10° A/m², E, = 9.6 V/m, a =1 mm, b = 6 mm, c = 2 m, n = 1028 m 3, e = 1.6 x 10 19 c. Find the values of the following quantities. Resistivity of the material p = Slm Current I A Potential difference VAB V The r-component of the drift velocity vdz m/s
1.0x1016 electrons flow through a cross section of silver wire in 300 μs with a drift speed of 7.2x10-4 m/s. Part A What is the diameter of the wire? Express your answer to two significant figures and include the appropriate units. D= Submit ΜΑ Value Request Answer Units ?
A typical lightning bolt may last for 0.197 s and transfer 1.19 x 1040 electrons. Calculate the average current (in A) in the lightning bolt. HINT A
A x=0 A AV A potential difference of AV = 30 (V) is applied to the ends of a straight wire with cross section A length of L = 2 (m). The resistivity of the wire varies with p(x) = (1+x) (nm). Here x is the distance measured from one end of the wire in meters. B What is the magnitude of the electric field at the midpoint (x = L/2) of the wire, in (V/m)? n D 10 9.0 30 p(x) 15 x=L 20 X
hw6 A current of I = 1.4 A is passing through a conductor with cross sectional area A = 4.5 × 10-4 m2. The charge carriers in the conductor, electrons, have a number density n = 9.7 x 1027 m-3. Calculate the numerical value of v, in m/s.
Whale and Kanmuro are two islands located in the Chimera archipelago. These two are separated by a distance of 20 miles. A power link is to be established between them. The power link delivers a maximum power of 600 MW at full capacity with an operating voltage of 500 kV.a. Solve for the current at full power capacityb. Solve for the resistivity of the cable, assuming a conductor diameter of 1.5 cm please illustrate the problem. Please provide an illustration/diagram
A long coaxial cable, crossection of which is shown in the figure, is made up of a cylindrical inner wire of radius a and a cylindrical shell shaped coaxial outer wire of inner radius b and outer radius c. The current density with magnitude J = K- is spread over the cross section a of the inner wire where the current has out-of-page direction. Outer wire carries uniformly distributed current i = uka³ having into-the-page direction. a) Find the total current of the inner wire in in terms of i. Find expressions for the magnitude of magnetic field, b) inside the inner wire (r c)
The figure below represents a section of a circular conductor of nonuniform diameter carrying a current of I = 5.60 A. The radius of cross-section A1 is r1 = 0.330 cm. (a) What is the magnitude of the current density across A1? A/m2 The radius r2 at A2 is larger than the radius r1 at A1. (b) Is the current at A2 larger, smaller, or the same? The current is larger.The current is smaller. The current is the same. (c) Is the current density at A2 larger, smaller, or the same? The current density is larger.The current density is smaller. The current density is the same. Assume A2 = 2A1. (d) Specify the radius at A2. mm(e) Specify the current at A2. A(f) Specify the current density at A2. A/m2
A 14-gauge copper wire has a diameter of 1.508 mm. What magnitude current flows in amperes when the drift velocity is 0.500 mm/s? (The density of free electrons in copper is 8.34 x 1028 e /m³.).) A
Given that a current of I(t)= 2t2+4 (where t is in s) is flowing parallel to the axis of a cylindrical conductor. If the cylinder has a radius of 0.4 mm and a length of 50 cm. Find the current density in units of MA/m² at t=4.3 s. Note the unit MA/m2=10°A/m² Select one: O A. 245 O B. 149 Oc. 82 O D. 179 O E. 25