Meters: A galvanometer has an internal resistance of 100 ? and deflects full-scale at 2.00 mA. What size resistor should be added to it to convert it to a milliammeter capable of reading up to 4.00 mA?
A. 50.0 ? in series
B. 50.0 ? in parallel
C. 100 ? in series
D. 100 ? in parallel
Answer: D
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