Meters: a Galvanometer Has an Internal Resistance of 100 Ω

question 43

Multiple Choice

Meters: A galvanometer has an internal resistance of 100 Ω and deflects full-scale at 2.00 mA. What size resistor should be added to the galvanometer to convert it to a milliammeter capable of reading up to 4.00 mA, 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

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Definitions:

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