In a DC machine the
[ Select ]
Windings
End shields
Stator
Frame
holds the field poles and provides a
[ Select ]
shortened path
current
high resistance path
magnetic path
between them.

Question

In a DC machine the 
[ Select ]
Windings
End shields
Stator
Frame
 holds the field poles and provides a 
[ Select ]
shortened path
current
high resistance path
magnetic path
 between them.

BlackTom AI · Accepted Answer

The frame (also called the yoke) of a DC machine supports the field poles and completes the magnetic circuit by providing a magnetic path between them.

1) Relevant concepts
- DC machine components: poles (field poles), armature, windings, end shields (bearing supports), and frame/yoke.  
- Magnetic circuit: flux produced by pole shoes must return through a low-reluctance path (the yoke/frame) to complete the magnetic loop.  
- Mechanical support: the frame provides structural support for the poles and protects internal components.

2) Step-by-step reasoning
- Field poles are fixed to a stationary mechanical structure; that structure must both hold the poles in position and provide a path for the magnetic flux to return from one pole to the next.  
- The frame or yoke is the outer cast iron or steel structure bolted around the poles. It physically carries the poles and forms the outer part of the magnetic circuit.  
- Flux flows from a north pole, through the air gap, into the armature region, then returns through the adjacent pole and finally through the yoke/frame back to the original pole—so the frame is the return/magnetic path.

3) (No numeric calculations needed) Intermediate logical steps: identify which component holds poles (windings hold coils; end shields hold bearings; stator is a general term but the specific structure that both supports poles and carries flux is the frame/yoke). Determine which phrase describes what the frame provides: it gives a low-reluctance route for flux — i.e., a magnetic path.

4) Why the correct answer is correct
- The frame (yoke) is explicitly designed to both hold the field poles and to form the magnetic return path. Its material and geometry are chosen to provide a low-reluctance magnetic path.

5) Why the other options are incorrect
- Windings: these are coils of wire that produce current and flux but do not mechanically support poles.  
- End shields: provide bearing support and enclosure at the machine ends, not the magnetic return path.  
- Stator: in DC machines the stator term can refer to stationary elements, but the specific component that both supports poles and provides the magnetic return is the frame/yoke.  
- “Shortened path”, “current”, “high resistance path”: inaccurate descriptions — the required route is a magnetic path (low reluctance), not a high-resistance or electrical current path.

6) Conclusion
This confirms the correct choices: Frame and magnetic path, matching the provided answer.

In a DC machine the [ Select ] Windings End shields Stator Frame holds the field poles and provides a [ Select ] shortened path current high resistance path magnetic path between them.Multiple dropdown selections

Similar Questions

In a DC machine the Frame holds the field poles and provides a magnetic path between them.

Safety considerations for inductive loads, what can an inductive load cause?

Which of the below are losses in a DC machine?

The force exerted on a conductor of 10 meters, carrying a current of 25A, in a field of 0.05T is?

MEPS is a standard required before appliances can be for sale or commercial use

Minimum Energy performance Standards are used for all machines over:

Maximum efficiency in a DC machine occurs when:

The efficiency of a DC motor is basically related to:

More Practical Tools for Students Powered by AI Study Helper

Homework AI Solver

Stylized AI Paper Writer

Plagiarism Checker Assistant

Citation AI Academic Writing Tool

In-Class Translation Assistant

AI Note Generator

AI Quiz Answers

Past Exam Questions from University Test Bank

Smart Practice Assistant

Adaptive Practice

Making Your Study Simpler