Answered: In a region containing an electric…

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter15: Electric Forces And Fields

Section: Chapter Questions

Problem 20P: An electron is accelerated by a constant electric field of magnitude 300 N/C. (a) Find the...

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In a region containing an electric field, point A is at 750 volts and point B is at 950 volts. An electron is observed moving at some speed at point A. When it reached point B, will the electron’s speed have increased, decreased, or stayed the same? Explain your answer.

Expert Solution

Step 1

Given data

The voltage of point A is given as V_A = 750 Volts.
The voltage of point B is given as V_B = 950 Volts.

The mathematical expression for the work done by the electron is given as,

$W = q \times V$

Here, q is the charge on the electron and V is the voltage.

According to the work-energy theorem as,

$W = K E W = \frac{1}{2} m v^{2}$

Here, m is the mass of the electron and v is the velocity of the electron.

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