Context: The simplest model capacitor consists of two thin parallel conductive plates separated by a dielectric with permittivity ε . This model may also be used to make qualitative predictions for other device geometries. The plates are considered to extend uniformly over an area A and a charge density ±ρ = ±Q/A exists on their surface. Assuming that the length and width of the plates are much greater than their separation d, the electric field near the centre of the device will be uniform with the magnitude E = ρ/ε. The voltage is defined as the line integral of the electric field between the plates

Question: In an ideal model of a capacitor, what is the value that describes the permittivity of the dielectric?
Answer: permittivity ε

Question: What equation describes the charge density for an ideal model of a capacitor?
Answer: ±ρ = ±Q/A

Question: In an ideal model of a capacitor, what must be assumed about the size of the plates?
Answer: much greater than their separation d

Question: Close to the middle of the capacitor, what equation describes the magnitude of the electric field?
Answer: E = ρ/ε

Question: What does the line integral of the electric field between the plates of a capacitor represent?
Answer: The voltage

Question: In an ideal model of a capacitor, what is the value that does not describe the permittivity of the dielectric?
Answer: Unanswerable

Question: What equation describes the charge density for an unideal model of a capacitor?
Answer: Unanswerable

Question: In an ideal model of a capacitor, what must never be assumed about the size of the plates?
Answer: Unanswerable

Question: Close to the outside of the capacitor, what equation describes the magnitude of the electric field?
Answer: Unanswerable

Question: What does the line integral of the electric field between the plates of a capacitor fail to represent?
Answer: Unanswerable