When two coupled coils of equal self-inductance are connected in series in one way the net inductance is 20 mH and when they are connected in the other way, the net inductance is 12 mH. Determine the maximum value of net inductance when they are connected in parallel.

When two coupled coils of equal self-inductance are connected in series in one way the net inductance is 20 mH and when they are connected in the other way, the net inductance is 12 mH. Determine the maximum value of net inductance when they are connected in parallel.

Electric Motor Control

10th Edition

ISBN:9781133702818

Author:Herman

Publisher:Herman

Chapter3: Magnetic Starters

Section: Chapter Questions

Problem 30SQ

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Question

When two coupled coils of equal self-inductance are connected in series in one way the net inductance is
20 mH and when they are connected in the other way, the net inductance is 12 mH. Determine the
maximum value of net inductance when they are connected in parallel.

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