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  4. The unit of self inductance is

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Q. The unit of self inductance is

UPSEEUPSEE 2019

Solution:

As we know, $EMF$ induced in a coil of self-inductance $L$ is given as
$E = -L \frac{dI}{dt} $
$ L = -E \frac{dt}{dI} $
So, SI unit of $L = \frac{\text{Volt second }}{\text{Ampere}} $
Hence, the unit of self induction is
Volt-second/Ampere.