A Galvanometer Has an Internal Resistance of 100 Ω and Deflects

question 13

Multiple Choice

A galvanometer has an internal resistance of 100 Ω and deflects full-scale at a current of 2.00 mA.What size resistor should be added to it to convert it to a millivoltmeter capable of reading up to 400 mV,and how should this resistor be connected to the galvanometer?

• A) 50.0 Ω in series with the galvanometer
• B) 50.0 Ω in parallel with the galvanometer
• C) 75.0 Ω in parallel with the galvanometer
• D) 100 Ω in series with the galvanometer
• E) 100 Ω in parallel with the galvanometer