Principles and Applications of Electrical Engineering 5th. Edition by Giorgio Rizzoni | 9780073220338 | 0073220337 | Holooly

Basic Electrical

Principles and Applications of Electrical Engineering

282 SOLVED PROBLEMS

Question: 1.2

Mechatronic Systems—Design of a Formula Lightning Electric Race Car The Formula Lightning electric race car competition is an interuniversity² competition project that has been active since 1994. This project involves the design, analysis, and testing of an electric open-wheel race car. A photo and ...

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Design Constraints: The Formula Lightning series i...

Question: 6.FOM.2

AC Line Interference Filter One application of narrow-band filters is in rejecting interference due to AC line power. Any undesired 60-Hz signal originating in the AC line power can cause serious interference in sensitive instruments. In medical instruments such as the electrocardiograph, 60-Hz ...

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Known Quantities-

R_{S}=50 \Omega

. ...

Question: 15.3

Determiningthe Order of a Butterworth Filter Determine the required order of a filter, given the filter specifications. ...

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Known Quantities: Filter gain at cutoff frequencie...

Question: 18.12

Analysis of Capacitor-Start Motor With reference to Figure 18.32, find the required starting capacitance. ...

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Known Quantities: Motor operating characteristics;...

Question: B.30

The speed of an AC electric motor a. Is independent of the frequency. b. Is directly proportional to the square of the frequency. c. Varies directly with the number of poles. d. Varies inversely with the number of poles. e. None of the above. ...

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The speed varies inversely with the number of pole...

Question: B.29

he armature resistance of a 55-hp, 525-V, DC shunt wound motor is 0.4Ω. The full-load armature current of this motor is 80 A. If the initial starting current is 175 percent of the full-load value, the resistance of the starting coil in Ω should be nearest to a. 6.6125 b. 3.75 c. 3.35 d. 4.15 ...

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I_{\text {start }}(\text { starting current...

Question: B.28

A four-pole synchronous motor operating from a 60-Hz supply will have a synchronous speed, in rev/min, of a. 900 b. 1,800 c. 1,200 d. 3,600 e. 4,800 ...

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Frequency

=(

no. of poles/2

...

Question: B.27

For the circuit of Figure B.16, where i=2 A,ϕ=1×10^−3 Wb, cross-sectional area =5 in^2, and the mean flux path length =2 in, the total reluctance R of the magnetic circuit in (A⋅t⋅in^2)/Wb is a. 1×10^5 b. 2×10^5 c. 1.5×10^5 d. 3.5×10^4 e. 2×10^5 ...

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From Chapter 16, the relationship between magnetom...

Question: B.26

Which of the following is a true characteristic of magnetic flux lines? a. They cross each other. b. They begin and end on electric charges. c. They are parabolic. d. They are continuous. e. None of the above. ...

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As discussed in Chapter 15, magnetic flux lines ar...

Question: B.25

In Figure B.15, if R1=2.2 kΩ,R3=18 kΩ,v1=120 mV and v2=−40 mV, choose the value of R2 such that v3=0. a. 1.2 kΩ b. 5 kΩ c. 7.33 kΩ d. 0.733 kΩ e. 0.5 kΩ ...

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Using the summing amplifier equation in Chapter 12...

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