Networks Analysis and Synthesis - Engineering

Q1:

In the series circuit shown in figure, for series resonance, the value of the coupling coefficient, K will be

A 0.25

B 0.5

C 0.1

D 1

ANS:A - 0.25

Mutual inductance wm = ωk L1L2 m = k. 2. 8j2 = 4k. j Z = 20 - j10 + j2 + j6 + 2.4kj - 2j + 8kj = 0 at resonance -2 = -8k k = 1/4 0.25 .