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Network theory miscellaneous

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Network Elements and the Concept of Circuit
Network theory miscellaneous
  1. The effective inductance of the circuit shown below—


    1. 12H
    2. 26H
    3. 20H
    4. None of these
Correct Option: B

The given circuit:

Leq = L1 + L2 + L3 – 2M12 + 2M23
Where L1 = 8H, L2 = 10H, L3 = 6H, M12 = 4H, M23 = 5H
Now, Leq = 8 + 10 + 6 – 2 × 4 + 2 × 5
= 24 – 8 + 10 = 26H


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