A galvanometer has a coil with a resistance of 75 ?. A current of 156 mA causes full scale deflection.
A) Calculate the value of the series resistor that is required in order to use the galvanometer as a Voltmeter with 40 V full scale.
B) What shunt resistor is necessary to convert the galvanometer into an Ammeter which deflects full scale for 2.2 A?