Physics · Electrical Measurements
Which of the following methods is used to extend the range of a wattmeter for high voltage and high current circuits?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1By using a series resistance on the voltage coil
- 2By using a series and parallel combination with the current and voltage coils
- 3By using instrument transformers in conjunction with the voltage and current coils✓
- 4By using a series resistance on the current coil
Correct answer
By using instrument transformers in conjunction with the voltage and current coils
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