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Physics - EMI/AC Question with Solution | TestHub

PhysicsEMI/ACFaraday law/Lenz lawEasy2 minPYQ_2020

PhysicsEasysingle choice

A flux of $1 mWb$ passes through a strip having an area $A = 0.02 m^{2}$ . The plane of the strip is at an angle of $60 °$ to the direction of a uniform field $B$ . The value of $B$ is

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Answer:

Solution:

We know that, $ϕ = BAcos θ$

Angle between $\vec{A}$ and $\vec{B}$ is $30 °$ .

$ϕ = 1 \times 10^{- 3} Wb$

$A = 0 .02 m^{2}$

$\Rightarrow 10^{- 3} = B \times 2 \times 10^{- 2} \times \cos 30^{o}$

$\Rightarrow B = 0 .058 T$

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

⏱ 2mℹ️ Source: PYQ_2020

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