A galvanometer of resistance, G, is shun...

A galvanometer of resistance, G, is shunted by a resistance S ohm. To keep the main current in the circuit unchanged the resistance to be put in series with the galvanometer is

`(S^(2))/((S+G))`

`(SG)/((S+G))`

`(G^(2))/((S+G))`

`G/((S+G))`

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