A beam contains 7.0 × 10⁹ doubly charged positive ions per cubic centimeter, all of which are moving north with a speed of 6.1 × 105m/s. What is (a) the magnitude of the current density and (b) direction of the current densityJ. (c) What additional quantity do youneed to calculate the total current i in this ion beam?(a) Numberi 8.3E3(b)to the north(c)cross-sectional area of ion beamUnitsA/m^2

Step 1: Use Formula:To solve this problem, we'll use the formula for current density…

Answered: A beam contains 7.0 × 10⁹ doubly…

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)...

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What is the current in a wire of radius R = 2.08 mm if the magnitude of the current density is given by (a) Ja = Jor/R and (b) Jp = Jo(1 - r/R) in which r is the radial distance and Jo = 8.05 × 104 A/m2? (c) Which function maximizes the current density near the wire's surface? (a) Number i Units (b) Number i Units (c)
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Q.no.7: A beam contains 2.0 × 108doubly charged posi-tive ions per cubic centimeter, all of which are moving north witha speed of 1.0 × 105 m/s. What are the (a) magnitude and (b) direc-tion of the current density J
A copper wire has a square cross section of 6 mm on a side. The wire is 10 m long and carries a current of 3.6 A. The density of free electrons is 8.5 x 1028/m³. Find the magnitude of (a) the current density in the wire; (b) the electric field in the wire. (c) How much time is required for an electron to travel the length of the wire? (p, electrical resistivity, is 1.72 x 10³ m.)
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A beam contains 2.0 × 109 doubly charged positive ions per cubic centimeter, all of which are moving north with a speed of 3.1 × 105 m/s. What is (a) the magnitude of the current density and (b) direction of the current density J→. (c) What additional quantity do you need to calculate the total current i in this ion beam?
this problems is giving me hard time
What is the current in a wire of radius R = 2.83 mm if the magnitude of the current density is given by (a) J, - Jor/R and (b) J, = Jo(1-r/R) in which r is the radial distance and Jo = 7.58 x 104 A/m2? (c) Which function maximizes the current density near the wire's surface? (a) Number i Units (b) Number i Units (c)

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