The electron beam emerging from a certain high-energy electron accelerator has a circular cross section of radius 1.65 mm. (a) The beam current is 8.55 µA. Find the current density in the beam assuming it is uniform throughout. ] A/m² (b) The speed of the electrons is so close to the speed of light that their speed can be taken as 300 Mm/s with negligible error. Find the electron density in the beam. m-3 (c) Over what time interval does Avogadro's number of electrons emerge from the accelerator?

Principles of Physics: A Calculus-Based Text
5th Edition
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter21: Current And Direct Current Circuits
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The electron beam emerging from a certain high-energy electron accelerator has a circular cross section of radius 1.65 mm.
(a) The beam current is 8.55 µA. Find the current density in the beam assuming it is uniform throughout.
|A/m2
(b) The speed of the electrons is so close to the speed of light that their speed can be taken as 300 Mm/s with negligible error. Find the electron density in the beam.
m-3
(c) Over what time interval does Avogadro's number of electrons emerge from the accelerator?
Transcribed Image Text:The electron beam emerging from a certain high-energy electron accelerator has a circular cross section of radius 1.65 mm. (a) The beam current is 8.55 µA. Find the current density in the beam assuming it is uniform throughout. |A/m2 (b) The speed of the electrons is so close to the speed of light that their speed can be taken as 300 Mm/s with negligible error. Find the electron density in the beam. m-3 (c) Over what time interval does Avogadro's number of electrons emerge from the accelerator?
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