A Galvanometer Has an Internal Resistance Of $100 \Omega$ And Deflects Full-Scale At

Multiple Choice

A galvanometer has an internal resistance of $100 \Omega$ and deflects full-scale at $2.00 \mathrm {~mA}$ . What size resistor should be added to it to convert it to a millivoltmeter capable of reading up to $400 \mathrm { mV }$ ?

A) $50.0 \Omega$ in parallel
B) $50.0 \Omega$ in series
C) $100 \Omega$ in series
D) $100 \Omega$ in parallel