#### transgalactic

##### Banned

[latex]\phi=LI[/latex]

BUT

[latex]\epsilon=-\dot{\phi}=-L\dot{I}[/latex]

but when i learned circuit theory

i always had these formulas

for inductor

[latex]\epsilon=L\dot{I}[/latex]

and for capacitor

for inductor

[latex]I=C\dot{V}[/latex]

there where no minus in the inductance formula

why in physics they add minus

??