Calculate the phase angle of the sinusoidal waveform w(t)=.45sin(87πt+8π÷787).(a) 2π÷39(b) 8π÷787(c) 5π÷74(d) 42π÷4The question was posed to me in an interview for job.My question is based upon Effect of Starting on Power Supply, Motor and Load topic in portion Starting of Electric Drives

Calculate the phase angle of the sinusoidal waveform w(t)=.45sin(87πt

1.	Calculate the phase angle of the sinusoidal waveform w(t)=.45sin(87πt+8π÷787).(a) 2π÷39(b) 8π÷787(c) 5π÷74(d) 42π÷4The question was posed to me in an interview for job.My question is based upon Effect of Starting on Power Supply, Motor and Load topic in portion Starting of Electric Drives
Answer» Right CHOICE is (b) 8π÷787 Explanation: 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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