Q3/ A certain power supply generates a voltage v(t)=Vm cos(@t+ P) having a frequency of 13.56 MHz. If the supply delivers a maximum power of 300 W to a 5 2 load and the voltage reaches a minimum at 21.15 ms, calculate Vm, 0, and p. 0LAn olternoting voltoge is givon by vleat) - 75 sin(314t 0 25) volts Find.

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Q3/ A certain power supply generates a voltage v(t)=Vm cos(ot+ q) having a frequency of 13.56
MHz. If the supply delivers a maximum power of 300 W to a 5 2 load and the voltage reaches
a minimum at t= 21.15 ms, calculate Vm, 0, and o.
Q4/ An alternating voltage is given by v(@t) = 75 sin(314t-0.25) volts. Find:
(a) The rms voltage;
(b) The average voltage;
(c) The periodic time;
(d) The instantaneous voltage when t= 4ms;
(e) The time when the voltage is first a maximum.
Q5/ Find the amplitudes and the phase relation for the following voltage waveforms:
vi(t) = -50 cos(@t) – 30 sin(@t) V
v2(t) = 55 cos(mt) – 15 sin(@t) V
Support your answer with waveforms drawing.
Transcribed Image Text:Q3/ A certain power supply generates a voltage v(t)=Vm cos(ot+ q) having a frequency of 13.56 MHz. If the supply delivers a maximum power of 300 W to a 5 2 load and the voltage reaches a minimum at t= 21.15 ms, calculate Vm, 0, and o. Q4/ An alternating voltage is given by v(@t) = 75 sin(314t-0.25) volts. Find: (a) The rms voltage; (b) The average voltage; (c) The periodic time; (d) The instantaneous voltage when t= 4ms; (e) The time when the voltage is first a maximum. Q5/ Find the amplitudes and the phase relation for the following voltage waveforms: vi(t) = -50 cos(@t) – 30 sin(@t) V v2(t) = 55 cos(mt) – 15 sin(@t) V Support your answer with waveforms drawing.
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