Power loss in an actual transformer is due to
Correct answer: B. Eddy currents and magnetic hysteresis
- A. Small output
- B. Eddy currents and magnetic hysteresis
- C. Soft iron core
- D. Back emf
Explanation
Power loss in transformers primarily occurs due to two factors:- Eddy currents: These are circulating currents induced in the conductive core material (usually iron) due to the changing magnetic field. Eddy currents result in resistive losses and contribute to power loss.- Magnetic hysteresis: This is the phenomenon where the magnetic properties of the core material lag behind changes in the magnetic field. It leads to energy dissipation and contributes to power loss.
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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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