Electron in a capacitor#

An electron enters a region between two large parallel plates made of aluminum separated by a distance of 3.0 \(\rm\ cm\) and kept at a potential difference of 240 \(\rm\ V\). The electron enters through a small hole in the negative plate and moves toward the positive plate. At the time the electron is near the negative plate, its speed is \(4.5\times 10^{4}\) \(\rm\ m/s\).

Question Text#

Assuming the electric field between the plates is uniform, find the speed of the electron when it is 3.0 \(\rm\ cm\) from the negative plate.

Answer Section#

Please enter a numeric value.

pl-submission-panel#

Attribution#

Problem is from the OpenStax University Physics Volume 2 textbook, licensed under the CC-BY 4.0 license.
Image representing the Creative Commons 4.0 BY license.