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A galvanometer vaving 50 divisions provi...

A galvanometer vaving 50 divisions provided with a variable shunt S is used to measure the current when conneted in series with a resistance of `90 Omega` and a battery of internal resistance `10 Omega`. It is observed that when the snt resistaces are `10 Omega & 70 Omega` respectively, the deflection are respectively 9 and 30 dividions. What is the resistance of the galvanometer ? Further, if the full scale deflection of the galvanometer movement require 200 mA. find the emf of the cell.

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The correct Answer is:
`R_(g)=700/3 Omega, E=96" volt".`
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