Question
Volt-second is unit of which physical quantity?

Answer

From $\varepsilon=\frac{\Delta \phi}{\Delta t }, \Delta \phi=\varepsilon \times \Delta t$
$\begin{array}{l} \text { Unit of magnetic flux }=\text { Unit of induced emf } \varepsilon \times \text { unit } \\ \text { of time }\end{array}$

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