In an energy meter braking torque is produced to________________?
Correct answer: D. maintain steady speed and equal to driving torque
- A. safe guard it against creep
- B. brake the instrument
- C. bring energy meter to stand still
- D. maintain steady speed and equal to driving torque
Explanation
The driving torque makes the energy-meter disc rotate, while braking torque opposes it until the disc reaches a steady speed. At that speed, braking torque balances the driving torque.
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