midterm1_soln - ESE123 Midterm Exam 1 Fall 2009 Name:_ Show...

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ESE123 Midterm Exam 1 Fall 2009 Name:________________________________ ID Number: __________________________ Show your work Don’t forget units Consider the oscillogram below for questions 1) through 5) Vp 1) What is the period of the waveform? The period is two boxes at 200 μs per box, or 400 μs. 2) What is the frequency of the waveform? f = 1/T= 2500 Hz 3) What is the angular frequency of the waveform? ω =2 π f=15710 rad/s 4) What is the peak voltage of the waveform? Three boxes (see figure) at 200 mV per box is 600 mV. 5) What is the RMS voltage of the waveform? V Vp Vrms 424 . 0 2 = = Consider the oscillogram below for questions 6) through 8)
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ESE123 Midterm Exam 1 Fall 2009 6) What is the duty cycle of the top wave? The duty cycle is the high time divided by the period: 75 . 0 4 3 = boxes boxes 7) What is the RMS voltage of the top waveform? V cycle duty V Vrms high 196 . 5 _ = = 8) Which of these waves (top or bottom) appears stationary on the scope? The scope is triggered on the top wave (you can tell from the circled trigger status information at the top right of the screen or from the circled trigger level indicator on the left of the screen). The
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This note was uploaded on 10/21/2010 for the course ESE 123 taught by Professor Westerfield during the Fall '07 term at SUNY Stony Brook.

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midterm1_soln - ESE123 Midterm Exam 1 Fall 2009 Name:_ Show...

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