A galvanometer having 50 divisions provided with a variable shunt s is used to measure the current when connected in series with a resistance of 90Omega and a battery of internal resistance 10Omega . It is observed that when the shunt resistance are 10Omega,50Omega, respectively the deflection are respectively 9 & 30 divisions . What is the resistance of the galvanometer ? Further if the full scale deflection of the galvanometer movement is 300 mA , find the emf of the cell.

A galvanometer having 50 divisions provided with a variable shunt s is

1.	A galvanometer having 50 divisions provided with a variable shunt s is used to measure the current when connected in series with a resistance of 90Omega and a battery of internal resistance 10Omega . It is observed that when the shunt resistance are 10Omega,50Omega, respectively the deflection are respectively 9 & 30 divisions . What is the resistance of the galvanometer ? Further if the full scale deflection of the galvanometer movement is 300 mA , find the emf of the cell.
Answer» SOLUTION :`2.33.3Omega144V`

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