A galvanometer of resistance $25\Omega$ giving full scale deflection for a current of $10\ milliampere,$ is to be changed into a voltmeter of range $100\ V$ by connecting a resistance of $'R'$ in series with galvanometer. The value of resistance $R$ in $\Omega$ is

Question

Dr. Abubacker · Accepted Answer

(d) $R = \frac{V}{i_{g}} - G = \frac{100}{10 	imes 10^{- 3}} - 25 = 9975\Omega$

Q. A galvanometer of resistance $25\Omega$ giving full scale deflection for a current of $10\ milliampere,$ is to be changed into a voltmeter of range $100\ V$ by connecting a resistance of $'R'$ in series with galvanometer. The value of resistance $R$ in $\Omega$ is

Explanation

Reviewed by Dr. Abubacker

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