Question 224: Electromagnetic Induction

Question

Three inductances are connected as shown in the figure. The equivalent inductance between A and b  is

Accepted Answer

Two 0.7 H inductors are in parallel.
$$ \frac{1}{\mathrm{~L}_{\mathrm{p}}}=\frac{1}{0.7}+\frac{1}{0.7}=\frac{2}{0.7} \Rightarrow \mathrm{~L}_{\mathrm{p}}=\frac{0.7}{2}=0.35 \mathrm{H} $$
$\mathrm{L}_{\mathrm{P}}$ is in Series with 0.85 H inductor.
$$ L_{	ext {eq }}=L_p+0.85=0.35+0.85=1.20 H $$
$	herefore \quad$ The equivalent inductance between $A$ and $B$ is 1.20 H .

Answer

2.25 H

Answer

1.20 H

Answer

0.225 H

Answer

0.120 H

Electromagnetic Induction

Three inductances are connected as shown in the figure. The equivalent inductance between A and b is

Choose the correct answer: