The SI unit of inductance,the henry,can be wr | vedclass

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(D) The induced electromotive force $e$ is given by $e = \frac{d\phi}{dt} = L \frac{dI}{dt}$.From this,the unit of inductance $L$ is $[L] = \frac{[	e

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All of the above

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(D) The induced electromotive force $e$ is given by $e = \frac{d\phi}{dt} = L \frac{dI}{dt}$.From this,the unit of inductance $L$ is $[L] = \frac{[	ext{Weber}]}{[	ext{Ampere}]}$.Since $e = \frac{d\phi}{dt}$,we have $[	ext{Volt}] = \frac{[	ext{Weber}]}{[	ext{Second}]}$,which implies $[	ext{Weber}] = [	ext{Volt} \cdot 	ext{Second}]$.Substituting this,we get $[L] = \frac{[	ext{Volt} \cdot 	ext{Second}]}{[	ext{Ampere}]}$.Also,the energy stored in an inductor is $U = \frac{1}{2} L I^2$. Thus,$[	ext{Joule}] = [L] \cdot [	ext{Ampere}]^2$,which implies $[L] = \frac{[	ext{Joule}]}{[	ext{Ampere}]^2}$.Therefore,all the given expressions are equivalent to the henry.

The $SI$ unit of inductance,the henry,can be written as

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