Final answer:
Increasing the voltage of a battery will result in electrons moving faster through the circuit, as increased voltage enhances the electric field and accelerates the electrons.
Step-by-step explanation:
If you increase the voltage of the battery, the electron display will change because electrons will move faster. Voltage is the driving force that pushes electrons through a circuit, and by increasing the voltage, you increase the electric field strength, which in turn increases the acceleration of the electrons, causing them to move more rapidly through the conductor.
An electron moves in an electric field toward regions of lower potential. This is because electrons are negatively charged, and they are attracted to positive charges, which are at higher potential in conventionally defined electric fields. For example, in a battery-driven circuit, electrons leave the negative terminal and move toward the positive terminal, which is the higher potential.
This increase in speed due to higher voltage does not imply that the frequency or the intensity of light affecting electron ejection in photoelectric experiments will have any impact, as these are different phenomena. Instead, we are looking at a direct electrical effect.