Physics - EMI/AC Question with Solution | TestHub

PhysicsEMI/ACSelf and mutual inductorEasy2 minPYQ_2020
PhysicsEasysingle choice

Two coilsP andQare kept near each other. When no current flows through coilPand current increases in coil Qat the rate10 A s-1, the e.m.f. in coilPis15 mV. When coilQ carries no current and current of1.8 Aflows through coilP, the magnetic flux linked with the coilQis

Options:

Answer:
C
Solution:

ep=M.dIQdt

15×10-3=M×10

∴    M=15×10-4 H

Φ Q =M I p

=15×10-4×1.8

=27.0×10-4

=2.7×10-3

=2.7 mWb

Stream:NTA_ABHYAS_NEETSubject:PhysicsTopic:EMI/ACSubtopic:Self and mutual inductor
⏱ 2mℹ️ Source: PYQ_2020

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