Galvanometer to be used as a DC ammeter; what shunt resistance must be used to read full scale at 10 amperes?

Question

if a galvanometer is to be used as a DC ammeter, what shunt resistance must be used to read full scale at 10 Amperes if Rg is 46 ohms and 200 mA (Ig) will produce full scale deflection?

Answer 1

Vfs = 46*0.2 = 9.2 mv

for 10 amps FS, R = E/I = 9.2mv/10a = 0.92mΩ or 920 µΩ