A 3.5 mH inductor and a 4.5 mH inductor are connected in parallel. The equivalent inductance is:
A) 2.0 mH
B) 0.51 mH
C) 0.13 mH
D) 1.0 mH
E) 8.0 mH

Question

Quizplus · Accepted Answer

When inductors are connected in parallel, the reciprocal of the equivalent inductance is the sum of the reciprocals of the individual inductances: 1/Leq = 1/L1 + 1/L2. For 3.5 mH and 4.5 mH inductors, 1/Leq = 1/3.5 + 1/4.5, which gives Leq = 2.0 mH.

A 35 MH Inductor and a 4