The equivalent inductance between points P and Q in figure is 
 

Given data:

Concept used: Electromagnetic induction.

Detailed solution:

A current is created by voltage production as a result of a shifting magnetic field.

We are aware that equivalent inductance and equivalent resistance are calculated in the same manner.

In series: ${\text{L}}_{\text{eq}}={\text{L}}_1+{\text{L}}_2$

In parallel: $\frac{1}{ {\text{L}}_{\text{eq}}}=\frac{1}{ {\text{L}}_1}+\frac{1}{ {\text{L}}_2}$

The effective inductance in this case is therefore 2H from figure.

Hence, option (A) is the solution.