Determine the duty cycle for each pulse waveform is Figure 8

Determine the duty cycle for each pulse waveform is Figure 8-78. Find the average value of each positive-going pulse waveform in Figure 8-78. What is the frequency of each waveform in Figure 8-78. What is the frequency of each sawtooth waveform in Figure 8-79? A square wave has a period of 40 mu s. List the first six odd harmonies. What is the fundamental frequency of the square wave mentioned in Problem 38? Determine the peak value and the period of the sine wave displayed on the scope screen in Figure 8-80, The horizontal axis is 0 V. Determine the rms value and the frequency of the sine wave displayed on the scope screen in Figure 8-80. Determine the rms value and the frequency of the sine wave displayed on the scope screen in Figure 8-81. The horizontal axis is 0 V.

Solution

Solution 40:

Figure 1: Resolution 0.2V:50ms

So peak value V_p = 3*0.2V = 0.6 V

Period T = 10 * 50ms = 500ms

Problem 42

Figure 2: Resolution 1V:0.1us

So peak value V_p = 2*1V = 2 V

So RMS value = V_p/sqrt(2) = 1.4142V

Period T = 6.5 * 0.1us = 0.65us

And frequency f = 1/T = 1.54 MHz