How can a galvanometer be converted into a voltmeter to read a maximum potential difference of V ? Support your answer with related mathematical expression.

How can a galvanometer be converted into a voltmeter to read a maximum

1.	How can a galvanometer be converted into a voltmeter to read a maximum potential difference of V ? Support your answer with related mathematical expression.
Answer» SOLUTION :To convert a GALVANOMETER into a voltmeter, we JOIN a suitable high resistance in series of galvanometer. If the galvanometer gives full scale deflection for a current `I_g` and has a resistance `R_G`, then to measure a potential difference up to V volt we MUST join a resistance R in series, so that `V = I_g (R_G+ R)` `:. "" R = V/(I_g) - R_G`.

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How can a galvanometer be converted into a voltmeter to read a maximum potential difference of V ? Support your answer with related mathematical expression.

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