A galvanometer can be converted into ammeter by connecting a low resistance (Shunt wire) parallel to the galvanometer.
The apparatus required for
conversion of galvanometer into ammeter are: Galvanometer (30-0-30), ammeter (0-3A), High Resistance box (1-10,000 ohms), Low
resistance box (1-1000 ohms), Rheostat, Plug Key, Battery Eliminator (2-12V), Shunt wire, connecting wires.