Topic: Electrical Machines
The Eddy current loss is proportional to the
- A. Frequency
- B. Square of the frequency
- C. Cube of the frequency
- D. Square root of the frequency
Answer: B. Square of the frequency
Explanation: According to the classical eddy current loss formula, the eddy current loss in a magnetic core is directly proportional to the square of the frequency of the alternating magnetic field ($P_e \propto f²$).