Differences
This shows you the differences between two versions of the page.
| Both sides previous revision Previous revision Next revision | Previous revision | ||
| 184_notes:ind_graphs [2022/12/07 14:37] – valen176 | 184_notes:ind_graphs [2022/12/07 14:43] (current) – valen176 | ||
|---|---|---|---|
| Line 5: | Line 5: | ||
| Vind=−dΦbdt | Vind=−dΦbdt | ||
| - | This is saying that the induced current is the **negative slope** of the magnetic flux. In other words, if the magnetic flux is increasing, then Vind will be negative, if the magnetic flux is decreasing, then Vind will be positive, and if the magnetic flux is constant, then Vind=0 | + | This is saying that the induced current is the **negative slope** of the magnetic flux. In other words, if the magnetic flux is increasing, then Vind will be negative, if the magnetic flux is decreasing, then Vind will be positive, and if the magnetic flux is constant, then Vind=0. |
| - | First let's consider when ΦB rises and falls linearly with the same magnitude of slope: | + | First let's consider when an example where ΦB rises and falls linearly with the same magnitude of slope: |
| Line 30: | Line 30: | ||
| \end{cases} | \end{cases} | ||
| $$ | $$ | ||
| - | Which finally means that Vind | + | Now we can multiply by −1 because of the negative sign in Faraday' |
| $$ | $$ | ||
| V_{ind}= | V_{ind}= | ||