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Physics - Current Electricity Question with Solution | TestHub

PhysicsCurrent ElectricityElectrical instrumentEasy2 minPYQ_2020

PhysicsEasysingle choice

The resistance of an ammeter is $13 Ω$ and its scale is graduated for current up to $100 A$ . After an additional shunt has been connected to this ammeter it becomes possible to measure currents up to $750 A$ by this meter. The value of shunt resistance is

Options:

Answer:

Solution:

We know,

$\frac{I}{I_{S}} = 1 + \frac{G}{S}$

$\frac{750}{100} = 1 + \frac{13}{S}$

$S= 2 Ω$

Stream:NTA_ABHYAS_NEETSubject:PhysicsTopic:Current ElectricitySubtopic:Electrical instrument

⏱ 2mℹ️ Source: PYQ_2020

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