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| Q. |
Calculate the phase angle of the sinusoidal waveform z(t)=78sin(456πt+2π÷78). |
| A. | π÷39 |
| B. | 2π÷5 |
| C. | π÷74 |
| D. | 2π÷4 |
| Answer» A. π÷39 | |
| 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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