An alpha particle (m = 6.7x10-27 kg, q +3.2x10-19 C) has a speed of 20 km/s at point A and moves to point B where it momentarily stops. Only electric forces act on the particle during this motion. Determine the electric potential difference VA - VB. -4.2 V -9.4 V +9.4 V -8.4 V +4.2 V

An alpha particle (m = 6.7x10-27 kg, q +3.2x10-19 C) has a speed of 20 km/s at point A and moves to point B where it momentarily stops. Only electric forces act on the particle during this motion. Determine the electric potential difference VA - VB. -4.2 V -9.4 V +9.4 V -8.4 V +4.2 V

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter7: Electric Potential

Section: Chapter Questions

Problem 12CQ: Can a particle move in a direction of increasing electric potential, yet have its electric potential...

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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 alpha particle (m = 6.7x10-27
kg, q = +3.2x1019 C) has a speed
of 20 km/s at point A and moves
%3D
to point B where it momentarily
stops. Only electric forces act on
the particle during this motion.
Determine the electric potential
difference VA - VB.
-4.2 V
-9.4 V
+9.4 V
-8.4 V
+4.2 V

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