Timeline for How to calculate the dipole potential in spherical coordinates
Current License: CC BY-SA 4.0
5 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Sep 5, 2018 at 14:36 | vote | accept | gamma | ||
| Sep 5, 2018 at 14:19 | comment | added | Tetra | $r$ is the distance of the point at which we're measuring the potential from the origin, and $r_\pm$ is the distance of that point from the $\pm q$ charges respectively. For the cosine rule, the side that we're trying to find is $r_+$ or $r_-$, and the two sides we know are $r$ and either $+ \frac{a}{2}$ or $-\frac{a}{2}$. | |
| Sep 5, 2018 at 14:13 | comment | added | gamma | Thanks for the detailed answer. The charge of the point charges is -2Q and Q. So this will change the second term in the potential by the factor of 2. I am a little bit confused by the cosin rule. What is the difference between $r_\pm$ and r and isn't the cosin rule: $c^2 = a^2 +b^2 - 2 * a*b*cos(\theta)$? | |
| Sep 5, 2018 at 13:40 | review | First posts | |||
| Sep 5, 2018 at 14:53 | |||||
| Sep 5, 2018 at 13:35 | history | answered | Tetra | CC BY-SA 4.0 |