Current coils of two wattmeters are connected in lines Y & B of a star-connected balanced load supplied by a 3-phase, 3-wire, V Volts, 50 Hz, RYB supply system. If V=290 Volts, W1 =800 Watts and W2=-295 Watts, the power factor = 0.3973, then the magnitude of phase current IR in Amperes. If V= 375 Volts, W1 = 980 Watts, W2 =-125 Watts and the power factor = 0.3973, then the magnitude of the impedance of the balanced star-connected loads is Ohms. If W = 1,060 Watts, W=-295 Watts then the total active power is Watts.