30. A high-energy proton accelerator produces a proton beam with a radius of r = 0.90 mm. The beam current is I = 9.00 µA and is constant. The charge density of the beam is n = 6.00 x 10" protons per cubic meter. (a) What is the current density of the beam? (b) What is the drift velocity of the beam? (c) How much time does it take for 1.00 × 1010 protons to be emitted by the accelerator?

30. A high-energy proton accelerator produces a proton beam with a radius of r = 0.90 mm. The beam current is I = 9.00 µA and is constant. The charge density of the beam is n = 6.00 x 10" protons per cubic meter. (a) What is the current density of the beam? (b) What is the drift velocity of the beam? (c) How much time does it take for 1.00 × 1010 protons to be emitted by the accelerator?

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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