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Physics - EMI/AC Question with Solution | TestHub

PhysicsEMI/ACSelf and mutual inductorEasy2 minPYQ_2020

PhysicsEasysingle choice

A small square loop of wire of side $l$ is placed inside a large square loop of side $L (L ≫ l) .$ If the loops are coplanar and their centres coincide, the mutual induction of the system is directly proportional to

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Answer:

Solution:

$M = \frac{ϕ}{i} = \frac{B A}{i}$

$M = 4 \times [\frac{μoi}{4 π \frac{ι}{i}} \times \frac{2}{\sqrt{2}}] \frac{l^{2}}{i}$

$= \frac{4 \times B_{o n e s i d e}}{i} \propto \frac{l^{2}}{L} (a s A \propto l^{2} a n d B \propto \frac{1}{L})$

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

⏱ 2mℹ️ Source: PYQ_2020

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