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PhysicsCurrent ElectricityElectrical instrumentEasy2 minPYQ_2021
PhysicsEasysingle choice

For full scale deflection of total50divisions,50mVvoltage is required in galvanometer. The resistance of galvanometer if its current sensitivity is2 div /mAwill be:

Options:

Answer:
B
Solution:

 C.S. =θIg

Ig=θC.S.=50div2div/mA=25 mA

Potential difference =50mV

Resistance =VI=50mV25 mA=2Ω

Stream:JEESubject:PhysicsTopic:Current ElectricitySubtopic:Electrical instrument
2mℹ️ Source: PYQ_2021

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