When a current of `5mA` is passed through a galvanometer having a coil of resistance `15Omega`, it shows full scale deflection. The value of the resistance to be put in series with the galvanometer to convert it into to voltmeter of range `0-10V` isA. `2*535xx10^3Omega`B. `4*005xx10^3Omega`C. `1*985xx10^3Omega`D. `2*045xx10^3Omega`

When a current of `5mA` is passed through a galvanometer having a coil

1.	When a current of `5mA` is passed through a galvanometer having a coil of resistance `15Omega`, it shows full scale deflection. The value of the resistance to be put in series with the galvanometer to convert it into to voltmeter of range `0-10V` isA. `2535xx10^3Omega`B. `4005xx10^3Omega`C. `1985xx10^3Omega`D. `2045xx10^3Omega`
Answer» Here, `I_g=5xx10^-3A`, `G=15Omega`, `V=10V`, `R=V/I_g-G=(10)/(5xx10^-3)-15` `=2000-15=1*985xx10^3Omega`

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