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Physics - Current Electricity Question with Solution | TestHub

PhysicsCurrent ElectricityElectrical instrumentMedium2 minQB

PhysicsMediumsingle choice

When a current of $5 mA$ is passed through a galvanometer having a coil of resistance $15Ω$ , 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 range $0 - 10 V$ is:

Options:

Answer:

Solution:

$Δ V = I_{g} (R_{g} + R_{H})$

$10 = 5 \times 1 0^{- 3} {x + 15}$

$x = 1.985 \times 1 0^{3} Ω$

Stream:JEESubject:PhysicsTopic:Current ElectricitySubtopic:Electrical instrument

⏱ 2mℹ️ Source: QB

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