7. )sin( tAm
If the waveform is shifted to the right or
left, the expression becomes:
8.
9.
10. An alternating current is given by i = 30 sin(100πt +
0.27) amperes. Find the amplitude, periodic
time, frequency and phase angle.
i = 30 sin(100πt + 0.27)
i = A sin (ωt + Θ)
Amplitude A = 30A
phase angle Θ = 0.27rads = 15.46
ω = 2fπ = 100π, frequency f = 50Hz
T = 1/f = 1/50 = 0.02s