4. An electron is placed at the negative plate of a capacitor which has an electric potential difference of 12

V. Determine the kinetic energy gained by the electron, in electron volts, if the electron is released and

moves

a) the entire distance through the capacitor.

b) one third of the distance through the capacitor.

5. An alpha particle is placed at the negative plate of a capacitor which as an electric potential difference

of 12 V. Determine the energy, in electron volts, required to move the alpha particle through the entire

distance of the capacitor.

Draw a diagram showing the field lines in each of the following situations.

b) For the first diagram, redraw the electric field lines as if one charged object has three times the magnitude of

charge as the other charged object. Describe the effect of charge magnitude on electric field diagrams.

6. An electron, travelling horizontally at a speed of 5.45 x 106 m/s, enters a parallel plate capacitor with an

electric field of 125 N/C between the plates. The separation between the plates is 6.20 mm. Ignoring

gravitational effects, if the electron passes from the top plate to the bottom plate, how far will it have

traveled into the capacitor?