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Physics - Magnetism Question with Solution | TestHub

PhysicsMagnetismMiscellaneousEasy2 minPYQ_2020

PhysicsEasysingle choice

The tangent galvanometers having coils of the same radius are connected in series. A current flowing in them produces deflections of $60^{o}$ and $45^{o}$ respectively. The ratio of the number of turns in the coil is

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Answer:

Solution:

In series current is same. In tangent galvanometer

$B = B_{H} \tan θ \Rightarrow \frac{μ_{0} n i}{2 R} = B_{H} t a n θ$

$∵ i =$ same

$∴ n \propto \tan θ \Rightarrow \frac{n_{1}}{n_{2}} = \frac{\tan 60^{o}}{\tan 45^{o}} = \frac{\sqrt{3}}{1}$

Stream:NTA_ABHYAS_NEETSubject:PhysicsTopic:MagnetismSubtopic:Miscellaneous

⏱ 2mℹ️ Source: PYQ_2020

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