Physics · Electrical Instruments

Consider the following statements regarding Permanent Magnet Moving Coil (PMMC) instruments: 1. It measures only DC or average values. 2. The scale is uniform and linear. 3. Control torque is usually provided by a spring. 4. Damping torque is provided by air friction damping. Which of the above statements are correct?

Verified Solution4 OptionsUpdated: October 2026👁️1 View

11 and 3 are correct
21, 2 and 3 are correct✓
32 and 4 are correct
41, 2 and 4 are correct

Correct answer

1, 2 and 3 are correct

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