An initially stationary positron at point A is accelerated to point B due to the presence of a uniform electric field. The change in electric potential energy of the charge is -4.80 × 10-19 J. A positron is an anti-electron that has a charge of +e while its mass is the same as that of an electron. (i) Find the work done to move the positron from point A to point B. (ii) Determine the potential difference when the positron is moved from point A to point B. (iii) Given that the potential at point A is -5.00 V, calculate the potential at point B.

An initially stationary positron at point A is accelerated to point B due to the presence of a uniform electric field. The change in electric potential energy of the charge is -4.80 × 10-19 J. A positron is an anti-electron that has a charge of +e while its mass is the same as that of an electron. (i) Find the work done to move the positron from point A to point B. (ii) Determine the potential difference when the positron is moved from point A to point B. (iii) Given that the potential at point A is -5.00 V, calculate the potential at point B.

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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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

An initially stationary positron at point A is accelerated to point B due to the
presence of a uniform electric field. The change in electric potential energy of
the charge is -4.80 × 10-19 J. A positron is an anti-electron that has a charge of
+e while its mass is the same as that of an electron.
(i)
Find the work done to move the positron from point A to point B.
(ii)
Determine the potential difference when the positron is moved from
point A to point B.
(iii)
Given that the potential at point A is -5.00 V, calculate the potential at
point B.

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