Core of a dynamo is laminated because
Correct answer: D. loss of energy in the core due to eddy current decreases
- A. magnetic field increases
- B. magnetic saturation level in the core increases
- C. residual magnetism in the core decreases
- D. loss of energy in the core due to eddy current decreases
Explanation
D is the correct answer .The core of a dynamo is laminated to reduce eddy current losses. Laminating the core involves dividing it into thin, insulated layers, which helps minimize the circular current paths and reduces energy losses due to eddy currents.
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About Electromagnetism
Magnetic flux density and magnetic flux describe the strength of a magnetic field and the field passing through a surface. A charged particle moving through a magnetic field experiences a force perpendicular to its velocity and may follow circular or helical motion, depending on the angle between velocity and field.
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