A microammeter has a resistance of 100Ω and a full scale range of 50μA . It can be used as a voltmeter or as a higher range ammeter provided a resistance is added to it. Pick the correct range and resistance combination (s)
a. 50 V range with 10kΩ resistance in series
b. 10 V range with 200kΩ resistance in series
c. 5 mA range with 1Ω resistance in parallel
d. 10 mA range with 1Ω resistance in parallel