The unit of self-inductance is:

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(B) The $SI$ unit of self-inductance $(L)$ is the Henry $(H)$.From the formula for induced $EMF$,$\varepsilon = -L \frac{di}{dt}$,we have $L = \frac{\

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$\frac{	ext{Joule} 	imes 	ext{second}}{	ext{Coulomb} 	imes 	ext{Ampere}}$

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(B) The $SI$ unit of self-inductance $(L)$ is the Henry $(H)$.From the formula for induced $EMF$,$\varepsilon = -L \frac{di}{dt}$,we have $L = \frac{\varepsilon \cdot dt}{di}$.The units are $\frac{	ext{Volt} 	imes 	ext{second}}{	ext{Ampere}}$.Since $	ext{Volt} = \frac{	ext{Joule}}{	ext{Coulomb}}$,substituting this gives $\frac{	ext{Joule}}{	ext{Coulomb}} 	imes \frac{	ext{second}}{	ext{Ampere}}$.Therefore,the correct expression is $\frac{	ext{Joule} 	imes 	ext{second}}{	ext{Coulomb} 	imes 	ext{Ampere}}$.

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