Physics · Electrical Measurements
In a Permanent Magnet Moving Coil (PMMC) instrument, a swamping resistance is employed to:
- 1compensate for errors due to high current
- 2compensate for errors due to high voltage
- 3compensate for errors due to temperature variations✓
- 4compensate for errors due to strong external magnetic fields
Correct answer
compensate for errors due to temperature variations
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