An electron moves along the trajectory of $FIGUREQ25.3$from $i$to$f$.
$\left(a\right)$ Does the electric potential energy increase, decrease, or stay the same? Explain.
$\left(b\right)$Is the electron's speed at $f$greater than, less than, or equal to its speed at $i$? Explain.

A potential energy measured in joules that emerges from conservative Coulomb forces and is related with the configuration of a specific set of point charges inside a specified system is known as electric potential energy.

The potential energy between positively and negatively charged particles is negative, and its absolute value decreases as the distance between them grows. The absolute value of the electron diminishes as it goes away from the positive charge, making it less and less negative.

The kinetic energy of an electron is constant and conserved, while the total of the kinetic and potential energy is constant and conserved. As the potential energy of the electron grows as it goes away, the kinetic energy must decrease in order for their sum to stay constant. As a result, the speed at $f$is slower than at $t$.