Physics · Electrical Instruments
Which of the following statements is NOT correct regarding an electrodynamometer type instrument?
- 1It has the same calibration for both DC instruments and AC measurements.
- 2It can be used for both AC and DC systems.
- 3The deflecting torque is inversely proportional to the square of the current.✓
- 4It can measure a range of currents and voltages up to 10 A and 600 V respectively.
Correct answer
The deflecting torque is inversely proportional to the square of the current.
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