Question

An electron with an initial speed of 620,000 m/s is brought to rest by an electric field. Part A Did the electron move into a region of higher potential or lower potential?

A. Because the electron is a negative charge and it slows down as it travels, it must be moving from a region of lower potential to a region of higher potential.
B. Because the electron is a positive charge and it accelerates as it travels, it must be moving from a region of lower potential to a region of higher potential
C. Because the electron is a positive charge and it accelerates as it travels, it must be moving from a region of higher potential to a region of lower potential
D. Because the electron is a negative charge and it slows down as it travels, it must be moving from a region of higher potential to a region of lower potential

Answer 1

An electron with an initial speed of 620,000 m/s slows down and moves from a region of higher potential to a region of lower potential because the electron is a negative charge and it slows down as it travels. Hence, the correct answer is option (D).

Step-by-step explanation:

Electrons are negatively charged particles. In an electric field, negative charges (like electrons) move from regions of higher electric potential to regions of lower electric potential. When an electron is brought to rest by an electric field, it loses kinetic energy and converts it into electric potential energy.

The electron is slowing down, indicating that it is moving to a region of lower electric potential. An electron with an initial speed of 620,000 m/s is brought to rest by an electric field. In this case, the electron has a negative charge and slows down as it travels. So, the correct choice is D.