$50.$ B$.$ C$.$ D$.$ The efficiency decreases and the no load current decreasesThe efficiency increases and the no load current increasesThe efficiency increases and the no load current decreasesWhen using the method of symmetrical components, which of the following statements is most nearlycorrect:A$.$ B$.$ C$.$ The three zero sequence current phasor are equal in magnitude and displaced by $1200.$The three positive sequence and the three negative sequence current phase are all equals inmagnitude, but have opposite phase.In wye connected synchronous generator, the voltage drops through the neutral groundingresistor, R is equal to $3$ Io R$,$ where I$0$ is the zero$-$sequence current.D$.$ Positive sequence and negative sequence currents cannot pass through the neutral groundingresistor in a wye$-$connected generator.