The action of electromagnetic machines can be related to which of the following basic principles __________?
Correct answer: D. All of the above
- A. Induction
- B. Interaction
- C. Alignment
- D. All of the above
Explanation
Electromagnetic machines involve induction for generating e.m.f., interaction between magnetic fields for producing force or torque, and alignment effects in systems such as reluctance and synchronous machines. Thus all three principles apply.
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