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| Both sides previous revision Previous revision Next revision | Previous revision | ||
| 184_notes:pc_efield [2021/01/26 18:27] – [Electric Field Vectors] bartonmo | 184_notes:pc_efield [2021/05/26 13:39] (current) – schram45 | ||
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| $$\vec{E_A} = \frac{1}{4 \pi\epsilon_0}\frac{Q}{d^2} \hat{y}$$ | $$\vec{E_A} = \frac{1}{4 \pi\epsilon_0}\frac{Q}{d^2} \hat{y}$$ | ||
| - | [{{ 184_notes:efieldvectors.png?200|Electric Field from a point charge}}] | + | [{{ :184_notes:efieldvectors_new.png?250|Electric Field from a point charge}}] |
| So we draw the electric field vector at Point A pointing straight up. If you follow the same steps for Points B-D, you find an important pattern from drawing this electric field vectors: **the electric field from a positive point charge points away from the charge**. If we were to look at points that were a distance of 2d away from the point charge, we would need to change the magnitude of the electric field by a factor of 4 (since it is $r^2$ in the denominator), | So we draw the electric field vector at Point A pointing straight up. If you follow the same steps for Points B-D, you find an important pattern from drawing this electric field vectors: **the electric field from a positive point charge points away from the charge**. If we were to look at points that were a distance of 2d away from the point charge, we would need to change the magnitude of the electric field by a factor of 4 (since it is $r^2$ in the denominator), | ||
| ==== Examples ==== | ==== Examples ==== | ||
| - | [[184_notes: | + | * [[184_notes: |
| + | * Video Example: Electric Field from a Negative Point Charge | ||
| + | {{youtube> | ||