Physics, asked by billionaire, 1 year ago

find the reading of voltameter

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Answered by Dhruba11

I=V/(R3+R2+(R1Rv/R1+Rv))
So, I=24/(30+20+(20*20/20+20))
. . . . =0.4
The reading of voltmeter is=I*(R1Rv/R1+Rv)
. . . . . . . . . . . . . . . . . . . . . . . =0.4*(20*20/20+20)
. . . . . . . . . . . . . . . . . . . . . . . =4 volt

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