Differences
This shows you the differences between two versions of the page.
| Both sides previous revision Previous revision | |||
| 184_notes:examples:week14_b_field_capacitor [2021/07/22 13:49] – schram45 | 184_notes:examples:week14_b_field_capacitor [2021/07/22 13:51] (current) – schram45 | ||
|---|---|---|---|
| Line 18: | Line 18: | ||
| * We are only concerned about a snapshot in time, so the current is $I$, even though this may change at a later time as the capacitor charges. | * We are only concerned about a snapshot in time, so the current is $I$, even though this may change at a later time as the capacitor charges. | ||
| * The electric field between the plates is the same as the electric field between infinite plates (we'll ignore the electric field at the edges of the capacitor): This allows us to assume the electric field is constant between the plates. This is a good assumption with two big plates that are very close together. | * The electric field between the plates is the same as the electric field between infinite plates (we'll ignore the electric field at the edges of the capacitor): This allows us to assume the electric field is constant between the plates. This is a good assumption with two big plates that are very close together. | ||
| - | * The electric field outside the plates is zero: This also ties back to having two big plates separated by a small distance. | + | * The electric field outside the plates is zero: This also ties back to having two big plates separated by a small distance. Making this assumption allows us to simplify down our equations when calculating the flux through our surface. |
| ===Representations=== | ===Representations=== | ||