Two coupled coils connected in series have an equivalent inductance of 16 mH or 8 mH depending on its inter connection. Then the mutual inductance M between the coil is
  • a)
    12 mH
  • b)
    8 √2mH
  • c)
    4 mH
  • d)
    2mH
Correct answer is option 'D'. Can you explain this answer?

Electrical Engineering (EE) Question

4 Answers
ِ ِ answered Jul 14, 2019
L1 +L2 + 2M =16
L1+ L2 - 2M= 8
solve both equations u will get M=2

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