The figure of merit of a galvanometer is

A galvanometer having 20 division scale and 50Omega resistance is connected in series to a cell of e.m.f. 1*5V through a resistance of 100Omega , shows full scale deflection. The figure of merit of the galvanometer in microampere/division is

In a circuit for finding the resistance of a galvanometer by half deflection method, a 6 V battery and a high resistance of 11 kOmega are used. The figure of merit of the galvanometer is 60 muA//"division" . In the absence of shunt resistance, the galvanometer produces a deflection of theta =9 divisions when current flows in the circuit. The value of the shunt resistance that can cause the deflection of theta//2 , is closet to :

In a circuit for finding the resistance of a galvanometer by half deflection method, a 6 V battery and a high resistance of 11 kOmega are used. The figure of merit of the galvanometer is 60 muA//"division" . In the absence of shunt resistance, the galvanometer produces a deflection of theta =9 divisions when current flows in the circuit. The value of the shunt resistance that can cause the deflection of theta//2 , is closet to :

When a galvanometer having 30 divisions scale and 100Omega resistance is connected in series with the battery of e.m.f. 3 volt through a resistance of 200Omega , it shows full scale deflection. Find the figure of merit of the galvanometer in microampere.