A Weston synchronoscope is a________________?
Correct answer: C. dynamometer instrument
- A. moving coil instrument
- B. moving iron instrument
- C. dynamometer instrument
- D. none of the above
Explanation
A Weston synchronoscope uses the dynamometer principle, in which the interaction between fixed and moving coil magnetic fields produces the operating torque. It is therefore classified as a dynamometer instrument rather than moving-coil or moving-iron type.
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