Electrical Engineering · Electrical Measurements and Instrumentation
Consider the following statements regarding the electrodynamometer-type instrument: i) It operates on the principle of a DC motor. ii) When used as a wattmeter, the instrument will have a non-uniform scale. iii) It is more expensive compared to a moving-iron instrument. iv) When the instrument is used in an AC circuit, there is no hysteresis loss in its operating torque mechanism. Which of the above statements are correct?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Only i, iii, and iv
- 2Only ii, iii, and iv
- 3Only iii and iv✓
- 4Only i and ii
Correct answer
Only iii and iv
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