A student wishes to measure the potential difference across a resistor R. She has a galvanometer G and some connecting wires. What else does she need?

A. high-value resistor connected in parallel with G
B. . low-value resistor connected in parallel with G low value
C. resistor connected in series with G
D. high-value resistor connected in series with G.

Correct Answer:

Option D – high-value resistor connected in series with G.