Question

Three inductors of $60mH$, $120mH$ and $75mH$ respectively, are connected together in a parallel combination with no mutual inductance between them. Calculate the total inductance of the parallel combination.

• A. $20mH$
• B. $26mH$
• C. $30mH$
• D. $28mH$

Answer 1

The correct option is B $26mH$

As the all inductors are connected in parallel combination so the total inductance will be

$L_T=\frac{1}{1/60+1/120+1/75}$
$=1/0.038=26.08=26$ $mH$