Physics - Current Electricity Question with Solution | TestHub

PhysicsCurrent ElectricityElectrical instrumentEasy2 minPYQ_2020
PhysicsEasysingle choice

In the circuit shown in the figure, reading of voltmeter isV1when onlyS1is closed, reading of voltmeter isV2when onlyS2is closed and reading of voltmeter isV3when bothS1andS2are closed. Then -

Options:

Answer:
B
Solution:

When onlyS1is closed,i=ER+3R=34R

ReadingV1=3R=3E4= 0.75 E

When onlyS2is closedi=E7R

ReadingV2=i6R= 6E7= 0.86 E

WhenS1andS2both are closed,Req=R+2R=3R

i =E3R, V3=i2R=2E3= 0.67 E,  V2>V1>V3

Stream:NTA_ABHYAS_NEETSubject:PhysicsTopic:Current ElectricitySubtopic:Electrical instrument
⏱ 2mℹ️ Source: PYQ_2020

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