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Physics - Current Electricity Question with Solution | TestHub

PhysicsCurrent ElectricityElectrical instrumentMedium2 minPYQ_2017
PhysicsMediumsingle choice

When a current of5 mAis passed through a galvanometer having a coil of resistance15 Ω, it shows full-scale deflection. The value of the resistance to be put in series with the galvanometer to convert it into a voltmeter of range0-10 Vis:

Options:

Answer:
B
Solution:

V=IgRg+RH

10=5×10-3x+15

x=1.985×103 Ω

Stream:JEESubject:PhysicsTopic:Current ElectricitySubtopic:Electrical instrument
2mℹ️ Source: PYQ_2017

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