A moving-coil permanent-magnet instrument can be used as ____________by using a low resistance shunt?
Correct answer: A. ammeter
- A. ammeter
- B. voltmeter
- C. flux-meter
- D. ballistic galvanometer
Explanation
A low-resistance shunt carries most of the current around the PMMC movement, extending its range and converting it into an ammeter. A high series resistance would instead produce a voltmeter.
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