Describe each equation below. Identify each term and indicate the units.
W=\Delta UE=q\Delta V
K=12mv2
An electron (q = –e, m = 9.11 x 10–31 kg) is released from rest next to the negatively charged electrode of a parallel plate capacitor. The capacitor plates are separated by 2 mm, have a diameter of 4 cm, and are charged to \pm 50 nC.
What is the strength of the electric field inside the capacitor?
What is the acceleration of the electron after it is released? (*Hint: What force acts on the electron?)
What is the electron’s speed just before it hits the positively charged electrode?