A straight cylindrical wire lying along the x axis has a length of L= 2.4 m and a radius of r=0.2mm. The a resistivity of the wire's material is p= 2x10-8 Qm. If the potential difference across the ends of wire is V = 8 Volts,calculate the magnitude of the current density (J=?).O A. 6.25 x 108 A/m2• B. 1.667 x 108 A/m2• C. 2.086 x 10S A/m?D. 3.407 x 108 A/m2

Answered: Image /qna-images/answer/eb6cc370-cc30-407b-a4a3-9436908accc0.jpg

A straight eylindrical wire lying along the x axis has a length of L = 2.4 m and a radius of r = 0.2mm. The a resistivity of the wire's material is p = 2x10 Qm. If the potential difference across the ends of wire is V = 8 Volts, calculate the magnitude of the current density (J=?). • A. 6.25 x 10° A/m? B. 1.667 x 10° A/m2 C. 2.086 x 10$ A/m2 O D. 3.407 x 10° A/m2

A straight eylindrical wire lying along the x axis has a length of L = 2.4 m and a radius of r = 0.2mm. The a resistivity of the wire's material is p = 2x10 Qm. If the potential difference across the ends of wire is V = 8 Volts, calculate the magnitude of the current density (J=?). • A. 6.25 x 10° A/m? B. 1.667 x 10° A/m2 C. 2.086 x 10$ A/m2 O D. 3.407 x 10° 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

long problem helps in this
Question A2 Pure copper has a resistivity of 1.68 x 10-8 Nm. Some accurate cubes of copper are prepared, and electrical measurements are made, for which current is passed across a pair of opposite faces. a) Comparing a 2.5 cm cube and a 5 cm cube, which will have the higher conductance? Ex- plain your answer. b) Given eight 1 cm cubes, how can they be stacked to get the highest and the lowest resis- tance between opposite faces of the stack? Calculate the resistance of each stack.
Let us model Ali Kemal as a straight, cylindrical wire has length L, radius a. It is made of a material described by Ohm's law with resistivity p. Assume that a uniform potential V is maintained between its ends. A uniform current is thus established in the wire. What is the magnitude of the current /? Select one: Vra pL Vp I = na L PL Vp 4ra L
The figure gives the electric potential V(x) along a copper wire carrying uniform current, from a point of higher potential V, = 8.00 µV at x = 0 to a point of zero potential at x, = 2.60 m. The wire has a radius of 2.10 mm, and copper has a resistivity of 1.69 x 10-8 0-m. What is the current in the wire? V. x (m) Number i Units (A) A
Kate has an iron wire connected across the terminals of a battery. When her circuit is at 20 degrees celcius , a current of 9.2 mA flows through her wire. When the circuit is placed somewhere else the current becomes 8mA. If the iron has a temp coefficient of resistivity of 5x10^-3(degrees celcius)^-1 , the temp of the new environment in degrees celcius is? a. -46 b. -6.1 c. 10 d. 30 e. 50
Under the influence of a constant E field of 700.0 N/C; 4.53* 1016 electrons pass through a 5.00 cm piece of wire in 5.00 seconds. a) What is the potential difference across the wire? b) What is the average current during this time period? c) What is the average power during this time? d) What is the effective resistance of the wire?
1.3 x 1020 electrons flow through a cross section of a 2.1-mm-diameter iron wire in 5.0 s. ▾ Part A What is the electron drift speed? Express your answer in micrometers per second. ▸ View Available Hint(s) IVD ΑΣΦ 2d=1.77.10-⁹ -9 Submit Previous Answers ? * Incorrect; Try Again; 2 attempts remaining μm/s
What is correct asnwer for this?
In shown circuit, the resistors, R are identical and R = 35.0 Ω.
None
Part A A 1.3x10-3 V/m electric field creates a 4.9x1017 electrons/s current in a 1.5-mm-diameter aluminum wire. What is the drift speed? Express your answer using two significant figures. va = 1.12 • 10-6 m/s Submit Previous Answers Request Answer X Incorrect; Try Again; 5 attempts remaining Part B What is the mean time between collisions for electrons in this wire? Express your answer using two significant figures. nνα ΑΣφ ? T = S Submit Request Answer Drovide Cood bools
a) Remote control is connected to a stereo by 20 m distance by using copper wire. This copper wire has a resistivity of 1.7x10* Qm. What should be the diameter at the end of the wire if the resistance of wire must be less than 0.10 Q?