By James H. Bentley
The box of electric engineering is particularly innovative-new items and new rules are continu best friend being constructed. but these types of strategies are in accordance with the elemental rules of electric engineering: Ohm's legislation, Kirchhoff's legislation, suggestions keep watch over, waveforms, capacitance, resistance, inductance, electrical energy, magnetism, present, voltage, energy, power. it truly is those easy basics that are demonstrated for within the expert Engineering exam (PE Exam). this article offers an geared up assessment of the elemental electric engineering basics. it's an outgrowth of an electric engineering refresher path taught via the writer to applicants getting ready for the pro Engineering Examination-a path which has enabled rankings of electric engineers in Minnesota and Wisconsin to effectively move the PE examination. the fabric is consultant of the kind of questions showing within the PE checks ready via the nationwide Council of Engineering Examiners (NCEE) over the last twelve years. each one challenge within the textual content has been rigorously chosen to demonstrate a selected suggestion. integrated with every one challenge is a minimum of one resolution. even supposing the suggestions were rigorously checked, either through the writer and through scholars, there's adjustments of interpretation. additionally, every so often definite assumptions might have to be made sooner than challenge resolution, and because those to person, the ultimate solution can also fluctuate. The assumptions will fluctuate from person writer has tried to maintain the necessities for assumptions and interpretation to a mini mum.
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Extra info for A Programmed Review for Electrical Engineering
14h 3 21rf 377 If your answers are correct, go on to Problem 2-11. If your answers are not correct, review pp. 11 and 12. PROBLEM 2·11. L o. ±L E 120~ 0 . 91 0 = 2448 watts If your answer is correct, go on to Problem 2-12. If your answer is not correct, review pp. 11 and 12. COMPENSATING CIRCUITS The problems in this section apply to a variety of electrical engineering specialities including control theory and transient analysis. Use is made of partial fractions (see Chapter 5) and the Laplace transform.
E =S E (s) _ __E--'s'----_ o - s(s + 1IRC) Taking the inverse £, If your answer is correct, go on to Problem 2-14. If your answer is not correct, review the solution to Problem 2-12. VOLTMETERS This problem illustrates the practical application of using a microammeter and some precision resistors to create a voltmeter. PROBLEM 2-14. VOLTMETER DESIGN Given a microammeter having a 50 Jl amp movement and an internal resistance of 10 ohms, design a voltmeter with ranges of 10 VDC, 50 VDC, 100 VDC, and 500 VDC.
159 X 10-6 b. 159 X 10-6 If your answers are correct, go on to Problem 2-18. If your answers are not correct, review p. 26. PROBLEM 2-18. PASSIVE CIRCUIT CALCULATION Compute the inductance of a coil required to produce parallel resonance at 60 Hz in a circuit with a 50 KVAR-rated capacitor at 4800 volts. 22 h If your answer is correct, go on to Problem 2-19. If your answer is not correct, review pp. 12, 13 and 23. 48 CHAPTER 2 / BASIC CIRCUITS PROBLEM 2-19. SERIES-PARALLEL RESONANT FILTER A filter is a device which passes currents of a certain frequency and offers high impedance to currents of another frequency.
A Programmed Review for Electrical Engineering by James H. Bentley