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Physics - EMI/AC Question with Solution | TestHub

PhysicsEMI/ACSelf and mutual inductorEasy2 minPYQ_2020

PhysicsEasysingle choice

Two coils of self inductance $2 mH$ and $8 mH$ are placed so close together that the effective flux in one coil is completely linked with the other. The mutual inductance between these coils is

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Answer:

Solution:

Mutual inductance between coils is

    $M = K \sqrt{L_{1} L_{2}}$

or,      $M = 1 \sqrt{2 \times 1 0^{- 3} \times 8 \times 1 0^{- 3}}$     $(∵ K = 1)$

        $= 4 \times 1 0^{- 3} = 4 mH$

Stream:NTA_ABHYAS_NEETSubject:PhysicsTopic:EMI/ACSubtopic:Self and mutual inductor

⏱ 2mℹ️ Source: PYQ_2020

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