railway RRB JE (CBT I + CBT II) Mock Test 2024 Electrical and Electronics Measurements Measurement of Power Measurement of Poly Phase Power
The power of a n-phase unbalanced circuit can be measured by using a minimum of _________.
1
n wattmeters
2
(n + 1) wattmeters
3
(n – 2) wattmeters
4
(n – 1) wattmeters