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The purpose of this article is to help you create a data analysis plan for a quantitative study. For those interested in conducting qualitative research, previous articles in this Research Primer series have provided information on the design and analysis of such studies.^2,3Information in the current article is divided into 3 main sections: an overview of terms and concepts used in data analysis, a review of common methods used to summarize study data, and a process to help identify relevant statistical tests. My intention here is to introduce the main elements of data analysis and provide a place for you to start when planning this part of your study. Biostatistical experts, textbooks, statistical software packages, and other resources can certainly add more breadth and depth to this topic when you need additional information and advice.

1.assumesingle-turns coils -retrogressive winding, What is the value of Yf for a lap winding with a 4-pole, 12 commutator segments, with two coil sides/slot.?

2.elaborate on the value of commutator pitch in lap winding

3.in the ratio ofIc = Ia/A,how is the Current flowing through the armature conductors Ic is related to total current

4.What is the relation between number of parallel paths(A) and number of poles(P)?

5.propose and explain the symmetry requirement of lap winding?

6.falsify the fact that;Equalizer rings are needed in lap winding.

7.What is the value of Yf for a lap winding with a 4-pole, 12-slot armature with two coil sides/slot? (Assume single-turns coils - progressive winding)

8.assume thatsingle-turns coils,wha woulb br the impact of he value of Y_bfor a lap winding with a 4-pole, 12-slot armature with two coil sides/slot.

9.What is the condition of retrogressive winding?

10. Resultant pitch in the lap winding is?