A sinusoidal voltage v(t) = 150 sin(1000xt + 45°) is depicted in Fig. 1. Evaluate the time ti when the sinusoid crosses the t-axis (Hint: a standard representation of a sinusoid is a(t) = Am sin(27 ft + ¢)), where Am is the amplitude, ƒ is the cyclic frequency, and ø is the phase. Moreover, the period, T, can be calculated as T = 1/f. 200 v(t) 100 -100 v = 0 -200 tị T 37 t Figure 1: Figure for Question 1 (a) Mathematically show that the integral of v(t) is transformed to the phasor domain as V/jw, such that V dt jw' where v(t) = Vm cos(wt + ø) = Re(Vmei (wt+ø)) = Re(Vejwt) and V = Vmej®.

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A sinusoidal voltage v(t) = 150 sin(1000rt + 45°) is depicted in Fig. 1. Evaluate the time tį when the
sinusoid crosses the t-axis (Hint: a standard representation of a sinusoid is a(t) = Am sin(27 ft + ø)), where
Am is the amplitude, f is the cyclic frequency, and ø is the phase. Moreover, the period, T, can be calculated
as T = 1/f.
200
v(t)
100
v = 0
-100
-200
Figure 1: Figure for Question 1 (a)
Mathematically show that the integral of v(t) is transformed to the phasor domain as V/jw, such that
V
dt
jw'
where v(t) :
Vm cos(wt + ¢) = Re(Vmej (wt+#)) = Re(Vejut) and V = Vmej¢.
Transcribed Image Text:A sinusoidal voltage v(t) = 150 sin(1000rt + 45°) is depicted in Fig. 1. Evaluate the time tį when the sinusoid crosses the t-axis (Hint: a standard representation of a sinusoid is a(t) = Am sin(27 ft + ø)), where Am is the amplitude, f is the cyclic frequency, and ø is the phase. Moreover, the period, T, can be calculated as T = 1/f. 200 v(t) 100 v = 0 -100 -200 Figure 1: Figure for Question 1 (a) Mathematically show that the integral of v(t) is transformed to the phasor domain as V/jw, such that V dt jw' where v(t) : Vm cos(wt + ¢) = Re(Vmej (wt+#)) = Re(Vejut) and V = Vmej¢.
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