- Two point charges are located on the x-axis, q, = -e at x = 0 and q2 = te at x = a. (a.) Find the work that must be done by an external force to bring point charge q3 = te from infinity to x = 2a. [Hint: The work W equals the difference between (i) the potential energy U associated with q3 when it is at x = 2a and (ii) the potential energy when it is infinitely far away. The second of these is zero, so the work required is equal to U.) (b.) Find the total potential energy of the system of three charges. 9: = -e 92= +e 93 = +e x=0 x= 20

- Two point charges are located on the x-axis, q, = -e at x = 0 and q2 = te at x = a. (a.) Find the work that must be done by an external force to bring point charge q3 = te from infinity to x = 2a. [Hint: The work W equals the difference between (i) the potential energy U associated with q3 when it is at x = 2a and (ii) the potential energy when it is infinitely far away. The second of these is zero, so the work required is equal to U.) (b.) Find the total potential energy of the system of three charges. 9: = -e 92= +e 93 = +e x=0 x= 20

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

Chapter20: Electric Potential And Capacitance

Section: Chapter Questions

Problem 17P: Two particles each with charge +2.00 C are located on the x axis. One is at x = 1.00 m, and the...

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