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Chapter 27 Solutions
Delmar's Standard Textbook Of Electricity
- The displacement is actual path of particle False Truearrow_forwardEMF in a circuit is ____. a. Cause current to flow b. Maintains potential difference c. Increases the circuit resistance d. Decreases the circuit resistance e. None of the Choicesarrow_forwardThe ---_characteristi cs shows the relation between the generated e.m.f at no load and the field current. O a. internal b. non-magnetic C. external d. magneticarrow_forward
- There are 144 fuel cells are joined in a series through interconnects.there will be 4 stacks having 36 cell in each stack.these stacks are then oragnised in series and parallel combination to form a single module to deliver required voltage and output power.this SOFCs module then combined with CHP system to get thermal . From this data answer the following questions. a)Calculate voltage losses of module?.this question is very compulsory. b)Electrical efficiency of module? C)Thermal efficiency when module combine with CHP system? D)Combined electrical and thermal efficiency? The input parameters of single cell are given below: Ocv=1.020 Current density=2250mA/cm2 Power density=850mw/cm2 Cell active area= 121cm2 Net power=15kw System fuel utilization=80% Operating temp=550°c Cell voltage=0.8v Power of single cell=103 watt.arrow_forwardDear experts, regarding the question below can you elaborate as requested please, and indicate all the angels and voltages, please? The question is re written below b) Draw the phasor diagram for this machine to scale (use graph paper) i) Draw the generated voltage Vii) use the IXs phasor and the V phasor to construct the phasor for E.arrow_forwardZener Current (Iz) of Z1 Iz=___arrow_forward
- i) Calculate V1 and V2 for the voltage across the string insulator having phase voltage of 33kV for transmission line using details tabulated in the Table 3(a). Table 3(a) Type of Insulator Shunt Capacitance between each unit 0.1 C String to junction Self -Capacitance of each insulator ii) With the help of a suitable schematic diagram and necessary theoretical explanation, illustrate how to improve the efficiency of the suspension insulator.arrow_forwardUsing Millman's theoremarrow_forwardProblem 1 partsarrow_forward
- The diameter of an ACSR conductor is 1.162 inches. The steel core has 7 strands of diameter 0.1291 inches each. If Aluminum strands have the same diameter as that of a steel strand, the number of Aluminum strands is: O A. None of choices are correct O B. 36 O C. 74 O D. 54 O E. 45arrow_forwardwrite the factor governing height of polearrow_forwardFrom the plotted power curve determine the following: a) Peak power = ___________W b) Peak power occurs at ___________o c) Does the instantaneous power ever go negative? ___________ d) Are all of the power curve peaks of equal magnitude? ___________ e) Is the enclosed area under the positive power curve the same as the enclosed area under the negative power curve? ___________ f) The average (apparent) power for one complete cycle (360°) in voltamperes = ___________VA. g) The average (real) power for one complete cycle(360°) in watts = ___________VA.arrow_forward
Electricity for Refrigeration, Heating, and Air C...Mechanical EngineeringISBN:9781337399128Author:Russell E. SmithPublisher:Cengage Learning
Power System Analysis and Design (MindTap Course ...Electrical EngineeringISBN:9781305632134Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. SarmaPublisher:Cengage Learning