A galvanometer with a full-scale sensitivity of 2000 A has a coil resistance of 100-. It is

Question:

A galvanometer with a full-scale sensitivity of 2000 μA has a coil resistance of 100-Ω. It is to be used in an ammeter with a full-scale reading of 30 A.
(a) Should you use (1) a shunt resistor, (2) a zero resistor, or (3) a multiplier resistor? Why?
(b) What is the necessary resistance for your answer choice in part (a)?