The video tutorial explains the electric field between parallel plates and how to calculate the speed of a proton moving between them. It discusses different problem-solving approaches, focusing on the conservation of mechanical energy. The tutorial provides a step-by-step calculation of the proton's speed using given values for charge, electric potential difference, and mass. The importance of considering the direction of the electric field and its impact on potential energy is highlighted. The tutorial concludes with the final speed calculation and a brief discussion on the significance of the result.

Why is gravitational potential energy considered negligible for subatomic particles like protons in this scenario?

How does the electric potential difference affect the speed of the proton as it moves from plate A to plate B?