Discussion
With reference to the design of the armature coil of a DC machine, if \(Y_F\) is front pitch and \(Y_B\) is back pitch, the average pitch is:
Answer: A
The average pitch is (Y_B + Y_F)/2. In the armature winding of a DC machine, the back pitch Y_B and the front pitch Y_F are the distances traversed on the back and front of the armature, and the average of the two is called the average pitch.
\[ Y_A = \frac{Y_B + Y_F}{2} \]
The expression (Y_B - Y_F) is the resultant pitch of a lap winding, and half of that difference is not an average pitch, while the plain sum is not an average. So the first option is correct.
No comment is present. Be the first to comment.
Loading…
Post your comment
Please log in or register to post a comment.
Examination Categories
- SSC Exams
- Banking Exams
- Teaching Exams
- Civil Services Exams
- Railways Exams
- Engineering Recruitment Exams
- Defence Exams
- State Government Exams
- Police Exams
- Insurance Exams
- Nursing Exams
- Other Government Exams
- NRA CET
- PG Entrance Exams
- Campus Placement
- MBA Entrance Exams
- CUET and UG Entrance
- Judiciary Exams
- Regulatory Body Exams
- Software Development