Equivalent inductance of inductors in series and parallel

1. A.
   2.25 H
2. B.
   1.20 H
3. C.
   0.225 H
4. D.
   0.120 H

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1. A.
   $\frac{4}{5}H$
2. B.
   $\frac{5}{4}H$
3. C.
   $\frac{3}{10}H$
4. D.
   15 H

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1. A.
   $P$
2. B.
   $S$
3. C.
   $Q$
4. D.
   $R$

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1. A.
   $10$ H
2. B.
   $5$ H
3. C.
   $\dfrac{12}{25}$ H
4. D.
   $\dfrac{2}{5}$ H

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1. A.
   $12/11$
2. B.
   $11/12$
3. C.
   $5/12$
4. D.
   $12/5$

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