Question

Write the self indutance and mutual inductance si unit?

Answer 1

\phi =MI

Mutual inductance, between of two coils is equals to the magnetic flux linked with one coil when a unit current is passed in the other coil.

Alternatively,

e=-M\frac { dI }{ dt }

Mutual inductance is equal to the induced emf set up in one coil when the rate of change of current flowing through the other coil is unity.  

SI unit : henry, (weber { ampere }^{ -1 })

or (volt second { ampere }^{ -1 }).

Answer 2

\phi =MI

Mutual inductance, between of two coils is equals to the magnetic flux linked with one coil when a unit current is passed in the other coil.

Alternatively,

$e=-M\frac{dI}{dt}$

Mutual inductance is equal to the induced emf set up in one coil when the rate of change of current flowing through the other coil is unity.  

SI unit : henry, (weber { ampere }^{ -1 })

or (volt second { ampere }^{ -1 }).