In a given transformer, 87% of the flux produced in the primary is coupled into the secondary winding, what is the coefficient of coupling?
A) 0.87
B) 13
C) 87
D) 0.13
Answer :- Option A is the correct answer. Coefficient of coupling is given by-

Since from primary to secondary is 87% out of 100% of primary. THus k = 0.87.
In a given transformer, 87% of the flux produced in the primary is coupled into the...
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