Calculate the phase angle of the sinusoidal waveform u(t)=154sin(9.85πt-π÷89).(a) -78π÷9(b) -12π÷5(c) -π÷89(d) -2π÷888I got this question by my college director while I was bunking the class.My doubt stems from Methods to Reduce the Energy Loss During Starting in portion Starting of Electric Drives

Calculate the phase angle of the sinusoidal waveform u(t)=154sin(9.85�

1.	Calculate the phase angle of the sinusoidal waveform u(t)=154sin(9.85πt-π÷89).(a) -78π÷9(b) -12π÷5(c) -π÷89(d) -2π÷888I got this question by my college director while I was bunking the class.My doubt stems from Methods to Reduce the Energy Loss During Starting in portion Starting of Electric Drives
Answer» RIGHT answer is (C) -π÷89 To ELABORATE: Sinusoidal waveform is generally expressed in the FORM of V=Vmsin(Ωt+α) where Vm represents peak value, Ω represents angular FREQUENCY, α represents a phase difference.

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