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1. |
In a balanced 3-phase system, if one of the two wattmeter’s reading is negative then the |
A. | Reading should be taken as it is |
B. | Reading should be taken after reversing the pressure coil |
C. | Reading should be taken after reversing the current coil |
D. | All of these |
Answer» C. Reading should be taken after reversing the current coil | |