ECET 402 ECET402 MECHATRONICS WITH LAB WEEK 2 HOMEWORK
ECET 402 Week 2 Homework Answers (DEVRY)
Chapter3
P24 Explain why the signal is never attenuated in a current-loop system.
P25 Draw the circuit of a current-loop system. When Vin is 1 V, the loop current should be 5 mA. At all times, Vout should equal Vin.
P38 Find the total voltage drop in a 200-ft #20 twisted pair wire circuit carrying 100 mA. (Hint: The signal has to go out 200 ft and back.)
Chapter 6
P1 A potentiometer with a total range of 350° is supplied with a voltage of 12 Vdc. Find the output voltage for an angle of 135°.
P18 A toothed-rotor sensor has 30 teeth. Find the rpm if the sensor outputs pulses at 100 Hz.
P24 Both optical and Hall-effect sensors can be used as proximity switches. Name one possible application for each.
P28 When a 200-lb man gets in his car, the car body sinks 1 in. What is the spring constant for the suspension system of the car?
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