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184_notes:b_flux [2021/06/17 15:28] – [Magnetic Flux] bartonmo | 184_notes:b_flux [2021/06/17 16:08] (current) – bartonmo | ||
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{{youtube> | {{youtube> | ||
- | ==== Magnetic Flux ==== | + | ===== Magnetic Flux ===== |
[{{ 184_notes: | [{{ 184_notes: | ||
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$$\Phi_B = \int \vec{B} \bullet d\vec{A}$$ | $$\Phi_B = \int \vec{B} \bullet d\vec{A}$$ | ||
- | ==== Changing Magnetic Flux ==== | + | ===== Changing Magnetic Flux ===== |
- | As you saw in the demo video, just having a magnetic flux is not enough though - to drive a current, | + | As you saw in the demo video, just having a magnetic flux is not enough though - **to drive a current, the magnetic flux must be changing**. Mathematically, |
$$\frac{d\Phi_B}{dt}$$ | $$\frac{d\Phi_B}{dt}$$ |