2) Given -2 6. 4. 2 √(t) the following periodic waveform A A A b) Determine average value rms value 7 t(me)

4) The pulsed cosine signal shown in the following figure is "on" for two cycles and then "off" for a period of time equivalent to 18 cycles of the cosine wave. The signal is periodic and the frequency of the cosine wave is 200 rad/s. A 0 10 20 190 200 10 1 (ms) a) Sketch the frequency spectrum for this signal. b) How would the frequency spectrum change if the frequency of the cosine wave was doubled? c) How would the frequency spectrum change if the "off" time was halved?

Determine the frequency and duty cycle of a periodic digital waveform with a pulse width of 20µs and a period of 50μs.

Calculate the ripple factor in a full wave combiner circuit and the value of the output frequency, if you know that The value of 8 = Voc and rms (out-10V) and the input frequency is 60 Hz...

Use multi-vibration circuits and create a signal generator that produces a square, triangular, and sinusoidal waveform with a frequency of 1kHz. Show work for theoretical layout. Also, use a switch for each waveform.

3) Find and sketch the frequency spectrum of the half-wave rectified cosine wave form in the following Figure. -8 -6 -4 -2 51014 (a) 4 6 8 10 (ms)

double clipper circuit  Zener diodes 1N4733A has a voltage of 5.1 V and 1N4735A has a voltage of 6.2 V with a resistor R=300ohms has been used. you may like to increase the input to a 12 VRMS AC source in order to see the clipping at 7volt. Please, Do the theoretical calculations and plot the expected waveforms by hand. ( I have its multisim design and only needs theoretical calculation and hand drawn graph of it to compare to its data that I have collected  from multism.) Thanks

Find out the period of the given signal x[n]=cos(pi/3)n What will be the unit of the period?

*3. Find the energy and average power of the following signals: a) (0.75)"u(n-2), b) 5e0.35xn, c) 4 – 3.5sin(0.6tn + 0).

2-10 The waveform in the following figure represents one cycle of a periodic waveform. By a simple inspection process, list the lowest live frequencies (including de if present) in the spectrum. -T= 0.2 as