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8 results for “flux”

Formulae (8)

\oint \vec{E} \cdot d\vec{A} = \frac{Q}{\varepsilon_0}

Electric flux through a closed surface is proportional to the enclosed charge.

\varepsilon = -\frac{d\Phi_B}{dt}

A changing magnetic flux induces an electromotive force.

\varepsilon \propto -\frac{d\Phi_B}{dt}

Induced current opposes the change in flux that produced it.

\varepsilon = -\frac{d\Phi_B}{dt}

A changing magnetic flux induces an EMF.

\Phi_E = \frac{Q_{enc}}{\varepsilon_0}

Electric flux through a closed surface.

\mathcal{E} = -N\frac{d\Phi_B}{dt}

Induced EMF from changing magnetic flux.

\Phi_B = BA\cos\theta

Flux through a surface in a magnetic field.

v = \sqrt{2gh}

Speed of fluid leaving a hole at depth h.