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Physics - Magnetism Question with Solution | TestHub

PhysicsMagnetismMagnetic torque & energyEasy2 minPYQ_2020

PhysicsEasysingle choice

We have a galvanometer of resistance $25 Ω$ . It is shunted by a $2.5 Ω$ wire. The part of the total current $i_{0}$ that flows through the galvanometer is given as

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Answer:

Solution:

$S = \frac{i_{g} G}{i - i_{g}} \Rightarrow i_{g} = \frac{i S}{G + S}$

$i_{g} = \frac{i S}{G + S} = \frac{i_{0} \times 2.5}{25 + 2.5} = \frac{i_{0}}{11}$

Stream:NTA_ABHYAS_NEETSubject:PhysicsTopic:MagnetismSubtopic:Magnetic torque & energy

⏱ 2mℹ️ Source: PYQ_2020

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