Calculate the time period of the waveform y(t)=74cos(81πt+π).(a) .024 sec(b) .027 sec(c) .023 sec(d) .025 secThe question was asked in my homework.Asked question is from DC Motors in chapter Characteristics of DC & AC Motors of Electric Drives

Calculate the time period of the waveform y(t)=74cos(81πt+π).(a) .02

1.	Calculate the time period of the waveform y(t)=74cos(81πt+π).(a) .024 sec(b) .027 sec(c) .023 sec(d) .025 secThe question was asked in my homework.Asked question is from DC Motors in chapter Characteristics of DC & AC Motors of Electric Drives
Answer» The correct option is (a) .024 sec The explanation is: The fundamental time PERIOD of the cosine WAVE is 2π. The time period of y(t) is 2π÷81π=.024 sec. The time period is independent of PHASE SHIFTING and time shifting.

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Calculate the time period of the waveform y(t)=74cos(81πt+π).(a) .024 sec(b) .027 sec(c) .023 sec(d) .025 secThe question was asked in my homework.Asked question is from DC Motors in chapter Characteristics of DC & AC Motors of Electric Drives

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