Calculate the value of the coefficient of coupling for the tightly coupled coils.(a) 0(b) 1(c) 3(d) 2I got this question in unit test.My question is based upon Dynamic Braking of DC Shunt Motors in portion Braking of DC Motors & Induction Motors of Electric Drives

Calculate the value of the coefficient of coupling for the tightly cou

1.	Calculate the value of the coefficient of coupling for the tightly coupled coils.(a) 0(b) 1(c) 3(d) 2I got this question in unit test.My question is based upon Dynamic Braking of DC Shunt Motors in portion Braking of DC Motors & Induction Motors of Electric Drives
Answer» The correct option is (b) 1 For EXPLANATION I would say: The coefficient of COUPLING expresses how the two coils are magnetically coupled. It is mathematically represented as K=M÷√L1.L2. For tightly coupled coils, the VALUE of the mutual INDUCTANCE is √L1.L2. The value of the coefficient of coupling is 1.

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