The resistance of the coil of a pivoted-coil galvanometer is 9.36 Ω, and a current of. 0.0224 A causes it to deflect full scale. We want to convert this galvanometer to an ammeter reading 20.0 A full scale. The only shunt available has a resistance of 0.0250 Ω. What resistance R must be connected in series with the coil (Fig.)?


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April 3, 2010

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