1 An electron is released from rest in a uniform electric field and allowed to d

Question

1 An electron is released from rest in a uniform electric field and allowed to drift freely. At a later time, which of the following statements are true regarding the electron's potential energy, and the voltage at its location? a) The electron's potential energy has increased, and the voltage has increased. b) The electron's potential energy has increased, and the voltage has decreased. c) The electron's potential energy has decreased, and the voltage has increased. d) The electron's potential energy has decreased, and the voltage has decreased.

Explanation / Answer

(b) The electron’s potential energy has increased and the voltage has decreased.

Since electrons are negative they should be repelled by the negative charge and attracted by the positive charge, that is, in an electric field the electrons must move from regions of low potential to the regions with high potential by the action of the electrical forces.

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