The voltage between two phases in a balanced three phase-system (4 conductors) is U = 660V. The voltage between the phase and the neutral is: a) V=1143 V b) V = 660 V c) V = 381 V

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The voltage between two phases in a balanced three phase-system (4 conductors) is U = 660V.
The voltage between the phase and the neutral is:
a) V = 1143 V
b) V = 660 V
c) V = 381 V
A resistance R-30 2 is connected in series with an inductance (L) of reactance X₁.-40 52 and a capacitor (C)
reactance Xc-40 Q.The equivalent impedance (Z) is equal to:
a) 70 2
b) 30 (2
c) 50 2
The current absorbed by a resistive load of resistance 7.6 0, connected across the terminals of a battery of
electromotive force
E = 14 V and internal resistance r=0.4 0, is:
a) 1 = 1.75 A
b) I= 1.84 A
c) 1 = 35 A
Transcribed Image Text:The voltage between two phases in a balanced three phase-system (4 conductors) is U = 660V. The voltage between the phase and the neutral is: a) V = 1143 V b) V = 660 V c) V = 381 V A resistance R-30 2 is connected in series with an inductance (L) of reactance X₁.-40 52 and a capacitor (C) reactance Xc-40 Q.The equivalent impedance (Z) is equal to: a) 70 2 b) 30 (2 c) 50 2 The current absorbed by a resistive load of resistance 7.6 0, connected across the terminals of a battery of electromotive force E = 14 V and internal resistance r=0.4 0, is: a) 1 = 1.75 A b) I= 1.84 A c) 1 = 35 A
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