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Q. The coefficient of self inductance and the coefficient of mutual inductance have

Electromagnetic Induction

Solution:

$\text{Emf}=- L \frac{ di }{ dt }$
$\phi= Mi$
$\text{Emf} \frac{ d \phi}{ dt }=- M \frac{ di }{ dt }$
So, units and dimension of coeffiecent of self inductance and coefficent of mutual inductance are same.