The equivalent inductance between points P and Q in the figure is Option 1) 9 H Option 2) Option 3) Option 4) 12 H

Using

Self Inductance -

An emf is induced in the coil or the circuit which oppose the change that causes it. Which is also known back  emf.

- wherein

We can remove the 8H inductor as the circuit is balanced.

Option 1)

9 H

This option is correct

Option 2)

This option is incorrect

Option 3)

This option is incorrect

Option 4)

12 H

This option is incorrect

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