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Physics - Magnetism Question with Solution | TestHub

PhysicsMagnetismMagnetic torque & energyEasy2 minPYQ_2020

PhysicsEasysingle choice

A galvanometer of resistance $50 Ω$ giving full-scale deflection for a current of $10 mA$ is to be changed into a voltmeter of range $100 V$ . What should be the value of resistance to be added in series with this galvanometer?

Options:

Answer:

Solution:

$V = I (G + R)$

$100 = (R + 50) \times 10 \times 10^{- 3}$

$R + 50 = 10000$

$\Rightarrow R = 9950$ $Ω$

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

⏱ 2mℹ️ Source: PYQ_2020

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