UNIVERSITY OF MASSACHUSETTS DARTMOUTH COLLEGE OF ENGINEERING EGR 101 INTRODUCTION TO ENGINEERING I This assignment is due Thursday, October 25, 2012. Use engineering papers. Show all of your steps. Present your work neatly and clearly. Box your final answers. Problem 1 Problem 4 in Chapter 9 on p. 281. Calculate the period in ms. Calculate frequency in kHz. Express the signal as VS t Vpk sin t if this is a voltage source. On the scope the voltage scale is 5 V/div. Problem 2 Consider a signal whose angular frequency is 500 x 103 rad/sec. Calculate the frequency in kHz. Calculate the period in s . Problem 3 Consider an alternating voltage source VS with an amplitude of 50 V and a period of 10 s . Express the source voltage as VS t Vpk sin t by identifying V pk and . Determine V1, pk and V2, pk across resistors R1 and R2 by the voltage divider method.