A galvanometer has an internal resistance of 37 Ω and deflects full scale for a 50-μA current.
A) Describe how to use this galvanometer to make an ammeter to read currents up to 20 A .
Either:
A resistor must be placed in series with the galvanometer.
A resistor must be placed in parallel with the galvanometer
B) What is the value of this resistor?
C) Describe how to use this galvanometer to make a voltmeter to give a full-scale deflection of 350 V.
Either:
A resistor must be placed in parallel with the galvanometer.
A resistor must be placed in series with the galvanometer.
D) What is the value of this resistor?
