Chapter 4, Problem 54P

An electron with charge Q_e = −1.6×10⁻¹⁹ C and mass m_e = 9.1 × 10⁻³¹ kg is injected at a point adjacent to the negatively charged plate in the region between the plates of an air-filled parallel-plate capacitor with separation of 1 cm and rectangular plates each 10 cm² in area (Fig. P4.54). If the voltage across the capacitor is 10 V, find the following:

1. (a) The force acting on the electron.
2. (b) The acceleration of the electron.
3. (c) The time it takes the electron to reach the positively charged plate, assuming that it starts from rest.

Figure P4.54 Electron between charged plates of Problem 4.54.