Which of the following is not the use of a shunt?
Answer & explanation
Correct answer: option 2
The correct answer is Option (2) → To increase the range of voltmeter
A shunt is a low-resistance path used to bypass most of the current around a galvanometer to protect it and extend its range.
Uses of a shunt:
✅ Prevent galvanometer from damage due to large current
✅ Convert a galvanometer into an ammeter
✅ Increase the range of an ammeter
❌ Increasing the range of a voltmeter is **not** done using a shunt (it uses a series high resistance instead)
Answer: To increase the range of voltmeter