MCQ
The equivalent inductance between $\mathrm{A}$ and $\mathrm{B}$ is.....$H$
  • $1$
  • B
    $4$
  • C
    $0.8$
  • D
    $16$

Answer

Correct option: A.
$1$
a
The equivalent circuit diagram is as shown in the figure.

Here, all the inductances are connected in parallel. 

Hence, the equivalent inductance between $\mathrm{A}$ and $\mathrm{B}$ is

$\frac{1}{L_{A B}}=\frac{1}{4}+\frac{1}{4}+\frac{1}{4}+\frac{1}{4}=\frac{4}{4}=1$

or $L_{A B}=1 \,H$

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