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Physics - Current Electricity Question with Solution | TestHub

PhysicsCurrent ElectricityElectrical instrumentMedium2 minPYQ_2023

PhysicsMediumsingle choice

If only $1%$ of total current is passed through a galvanometer of resistance ' $G$ ' then the resistance of the shunt is

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Solution:

Given: $I_{g} = \frac{1}{100} I$ $∴ \frac{I}{I _{B}} = 100 S = \frac{GI _{B}}{I - I _{8}} = \frac{G}{\frac{I}{I _{B}} - 1} .$ Substituting, (i) intó (ii), $S = \frac{G}{100 - 1} = \frac{G}{99}$

Stream:MHT_CETSubject:PhysicsTopic:Current ElectricitySubtopic:Electrical instrument

⏱ 2mℹ️ Source: PYQ_2023

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