Rizzoni_errata - Errata Corrige Rizzoni Principles and...

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5/7/09 Errata Corrige Rizzoni, Principles and Applications of Electrical Engineering, Revised 4 th Ed. Chapter 2 Page Correction 21 Missing parenthesis in line 6: (i.e.: a circuit that can absorb and dissipate energy ) 26 Missing minus sign in line 10: I= …. .= - 1A 28 Incorrect labels in Figure 2.13: The lower twocurrents should be labeled I 3 (left)and I 4 (right). 44 Missing units in Table 2.3: Diameter per strand (in) 53 Focus on Measurements: Resistive Throttle Position Sensor Functional specifications of throttle position sensor (new line) Total resistance = R sensor + R 0 = 12 k Overall resistance, “ R o 3 to 12 k à : R 0 = 3 k Output V o should be V sensor Analysis (all equations have been corrected) k po t = 112 - 2 12 - 3 = .22 o /k , such that θ= k t R The sensor voltage is … V sensor = V B R R 0 + R = 5 V ( 29 R = 0 .417 R V R in k ( 29 The calibration of the … V = 0 R = 0 . 417 θ k t 54 Figure 2.43 (d) calibration curve for throttle position sensor 1
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5/7/09 So if the throttle is closed V sensor = 0 and if the throttle is wide open V = 0 .417 R =0 θ k po t = 0 V k 90 o 12 .22 o /k = 3 .07 V 57 CHECK YOUR UNDERSTANDING line 4 G = 2 should be GF = 2 61 Problem 2.7 does not belong in Sections 2.2, 2.3. It can be assigned with Sections 2.5-2.6 homework problems. The first line should read: Use Kirchhoff’s Current Law and Ohm’s Law to determine… 62 Problems 2.7, 2.8, 2.9, 2.10, 2.11, 2.12, 2.13 do not belong in Sections 2.2, 2.3. They can be assigned with Sections 2.5-2.6 homework problems. (Same correction as above problem: add and Ohm’s Law where appropriate) 63 Replace Problem 2.19 with the attached statement A 24-volt automotive battery is connected to two headlights, such that the two loads are in parallel; each of the headlights is intended to be a 75-W load, however, a 100-W headlight is mistakenly installed. What is the resistance of each headlight, and what is the total resistance seen by the battery? 63 Replace Problem 2.19 with the attached statement What is the equivalent resistance seen by the battery of Problem 2.13 of two 15-W taillights are added (in parallel) to the two 75-W (each) headlights? 68 Problem 2.53 There is nothing wrong with this problem, and the solution in the manual is correct. However, students may be confused by the units: the distance, x , should be expressed in m, not cm to obtain the correct answer. It may help to phrase the problem statement as follows: a. If the total length of the resistor is 0.02 m and the resistance is … 69 Problem 2.54, Figure P2.54 The meter resistance should be described by the symbol r m . The y-axis units should be mV The x-axis units should be kPa 69 Problem 2.56, Figure P2.56 The meter resistance should be described by the symbol r m . The y-axis units should be mV The x-axis units should be kPa 2
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5/7/09 Chapter 3 Page Correction 74 Example 3.1, Figure 3.1 (missing label) The rightmost resistor should be labeled R 4 80 Example3.4 Remove the units mA inside the right hand-side vector in the first equation.
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Rizzoni_errata - Errata Corrige Rizzoni Principles and...

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