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What is the coupling coefficient when all the flux of coil 1 links with coil 2?

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What is the coupling coefficient when all the flux of coil 1 links with coil 2?

(a) 0

(b) 100

(c) 1

(d) Insufficient information provided

This question was posed to me in final exam.

I'm obligated to ask this question of Coupling Coefficient topic in portion Inductance in a DC Circuit of Basic Electrical Engineering

1 Answer

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Best answer
Correct option is (c) 1

Easy explanation: When all the flux of coil 1 links with coil 2 it is known as an ideal coupling where the coupling coefficient is 1.

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