The S.I unit of mutual inductance, the 'henry' can be written as
Answer & explanation
Correct answer: option 2
The correct answer is Option (2) → $\frac{volt-second}{ampere}$
Induced voltage, $V=M.\frac{dI}{dt}$
$⇒M=\frac{Vdt}{dI}⇒\frac{volt.second}{ampere}$