Question Detail
Question
In order to increase the range of an ammeter, the value of the shunt resistance R is
Correct Answer
Option B is the correct answer.
Detailed Explanation
Decreasing the shunt resistance diverts a larger fraction of the current through the shunt, allowing the meter to measure larger total currents (extending its range).
Hint
A shunt diverts current away from the meter — think about what a smaller shunt resistance does to current sharing.