nside a vacuum tube, an electron is in the presence of a uniform electric field with a magnitude of 285 N/C. (a) What is the magnitude of the acceleration of the electron (in m/s2)? (b) The electron is initially at rest. What is its speed (in m/s) after 9.00 ✕ 10−9 s?

nside a vacuum tube, an electron is in the presence of a uniform electric field with a magnitude of 285 N/C. (a) What is the magnitude of the acceleration of the electron (in m/s2)? (b) The electron is initially at rest. What is its speed (in m/s) after 9.00 ✕ 10−9 s?

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

Chapter19: Electric Forces And Electric Fields

Section: Chapter Questions

Problem 31P

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Concept explainers

Electric Charges and Fields

One of the fundamental properties is the electromagnetic property. Charge cannot be destroyed by any process and this contributes formally to the law of charge conservation.

Question

Inside a vacuum tube, an electron is in the presence of a uniform electric field with a magnitude of 285 N/C.

(a)

What is the magnitude of the acceleration of the electron (in m/s²)?

(b)

The electron is initially at rest. What is its speed (in m/s) after 9.00 ✕ 10⁻⁹ s?

Expert Solution

Step 1

Given:

The strength of the electric field is 285 N/C.

The initial speed of the electron is 0 m/s.

The time interval is 9x10^-9 s.

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