Physics · Electrical Measurements
A (0 - 5) A PMMC ammeter does not have any controlling mechanism. If a DC current of 2 A is passed through the coil, what reading will be shown by the meter? (Assume frictional opposition is overcome by the torque produced)
- 12 A
- 25 A (Full-scale deflection)✓
- 3The pointer rotates continuously
- 4The pointer does not rotate
Correct answer
5 A (Full-scale deflection)
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