Galvanometer

Moving Coil Galvanometer|Sensitivity Of Galvanometer|Factors Affecting Sensitivity Of Galvanometer|Exercise Questions |Applications Of Galvanometer|Conversion Of Galvanometer Into Ammeter|Conversion Of Galvanometer Into Voltmeter |Conversion Of Galvanometer Into Voltmeter |Exercise Questions

If a galvanometer is connected in series with a high resistance so that potential drop across the galvanometer is 1/n th of the total applied voltage, then show that the combined resistance of the galvanometer and the series resistor is n times the resistance of the galvanometer i.e.,

Deflection of galvanometer in the circuit is 71 divisions. A shunt of 15Omega is connected parallel to galvanometer and value of R is adjusted such that main current ramains the same. If the deflection in the galvanometer falls to 15 divisions then the resistance G of galvanometer in (in ohm)

In a galvanometer there is a deflection of 10 divisions per mA.The internal resistance of the galvanometer is 60 Omega . If a shunt of 2.5 Omega is connected to the galvanometer, calculate the maximum current in which the galvanometer can be dead.

If a galvanometer is converted into an ammeter by using a shunt, determine the relation between the ammeter current and the galvanometer current with the help of a circuit diagram. What kind of galvanometer is used for this ?

In a galvanometer there is a deflection of 10 divisions per 50 mA . The internal resistance of the galvanometer is 60Omega . If a shunt of 2*5Omega is connected to the galvanometer and there are 50 divisions in all on the scale of galvanometer what maximum current can this galvanometer read?