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Physics - EMI/AC Question with Solution | TestHub

PhysicsEMI/ACFaraday law/Lenz lawEasy2 minPYQ_2020

PhysicsEasysingle choice

Some magnetic flux is changed from a coil of resistance $10 Ω$ . As a result, an induced current is developed in it, which varies with time as shown in the diagram. The magnitude of change in flux through the coil in webers is

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Answer:

Solution:

$|dq| = \frac{d ϕ}{R} = idt = Area under i-t graph$

$∴ d ϕ = (Area under i-t graph) (R)$

$= \frac{1}{2} (4) (0.1) (10) = 2 Wb$

Stream:NTA_ABHYAS_NEETSubject:PhysicsTopic:EMI/ACSubtopic:Faraday law/Lenz law

⏱ 2mℹ️ Source: PYQ_2020

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