A proton is released from rest at x = -2.0 cm in a constant electric field with magnitude 1.50 x10^3 N/C, pointing in the positive x-direction. a) Calculate the change in the electric potential energy associated with the proton when it reaches x = 5.0 cm. b) An electron is now fired in the same direction from the same position. What is the change in the electric potential energy associated with the electron if it reaches x = 12.0 cm? c) If the direction of the electric field is reversed and an electron is released from rest at x = 3.0 cm, by how much has the electric potential energy changed when the electron reaches x = 7.0 cm?
A proton is released from rest at x = -2.0 cm in a constant electric field with magnitude 1.50 x10^3 N/C, pointing in the positive x-direction. a) Calculate the change in the electric potential energy associated with the proton when it reaches x = 5.0 cm. b) An electron is now fired in the same direction from the same position. What is the change in the electric potential energy associated with the electron if it reaches x = 12.0 cm? c) If the direction of the electric field is reversed and an electron is released from rest at x = 3.0 cm, by how much has the electric potential energy changed when the electron reaches x = 7.0 cm?
Physics for Scientists and Engineers: Foundations and Connections
1st Edition
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Katz, Debora M.
Chapter26: Electric Potential
Section: Chapter Questions
Problem 67PQ: A charged particle is moved in a uniform electric field between two points, A and B, as depicted in...
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Question
A proton is released from rest at x = -2.0 cm in a constant electric field with magnitude 1.50 x10^3 N/C,
pointing in the positive x-direction.
a) Calculate the change in the electric potential energy associated with the proton when it reaches x =
5.0 cm.
b) An electron is now fired in the same direction from the same position. What is the change in the
electric potential energy associated with the electron if it reaches x = 12.0 cm?
c) If the direction of the electric field is reversed and an electron is released from rest at x = 3.0 cm, by
how much has the electric potential energy changed when the electron reaches x = 7.0 cm?
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