A galvanometer of resistance `50 Omega` produces full-scale deflection by a current of `2mA`. Calculate the value of shunt required to change its range into `10A`.

A galvanometer of resistance 50 Omega gives full-scale deflection for a current of 0.25 A. Calculate the required resistance to convert the galvanometer into an, ammeter of range 5 A.

A galvanometer of resistance 100 Omega gives full-scale defletion for a current of 10muA . Find the resistance needed to convert it to an ammeter of range 1A.