Which of the following is not a unit of induc | vedclass

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(A) The formula for inductance $L$ is given by $\phi = L \cdot I$,where $\phi$ is magnetic flux and $I$ is current.Thus,$L = \frac{\phi}{I}$.The unit

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$Wb \cdot s \cdot A^{-1}$

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(A) The formula for inductance $L$ is given by $\phi = L \cdot I$,where $\phi$ is magnetic flux and $I$ is current.Thus,$L = \frac{\phi}{I}$.The unit of magnetic flux $\phi$ is Weber $(Wb)$ and the unit of current $I$ is Ampere $(A)$.Therefore,the $SI$ unit of inductance is $\frac{Wb}{A} = Wb \cdot A^{-1}$,which is also known as Henry $(H)$.Since $V = \frac{d\phi}{dt}$,the unit of flux can also be expressed as $V \cdot s$.Substituting this,$L = \frac{V \cdot s}{A} = V \cdot s \cdot A^{-1}$.Comparing these with the given options,$Wb \cdot A^{-1}$ $(D)$,$H$ $(C)$,and $V \cdot s \cdot A^{-1}$ $(B)$ are all valid units of inductance.Option $A$ $(Wb \cdot s \cdot A^{-1})$ is not a valid unit of inductance.

Which of the following is not a unit of inductance?

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