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Physics - Current Electricity Question with Solution | TestHub

PhysicsCurrent ElectricityElectrical instrumentHard2 minPYQ_2020

PhysicsHardsingle choice

A galvanometer of resistance $100Ω$ requires $10 μ$ A current for full scale deflection. Now a resistance of $1Ω$ is connected to convert it into an ammeter. The minimum current required to obtain full scale deflection is

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Answer:

Solution:

$I = (\frac{G + S}{S}) I_{g} = (\frac{100 + 1}{1}) \times 10 μ A = 1010 μ A = 1.01 mA$

Stream:MHT_CETSubject:PhysicsTopic:Current ElectricitySubtopic:Electrical instrument

⏱ 2mℹ️ Source: PYQ_2020

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