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.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
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.
Practise Electromagnetism
1,176 free Electromagnetism MCQs from Physics, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Physics questions like this
Physics is on 16 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Electromagnetism questions
The stored energy in an inductor:
The only difference between the construction of DC generator and AC generator is that
Which of the following uses electric energy and does not convert it into any other form?
A magnet is allowed to fall through a copper circular wire. Then during the fall:
The emf induced in a coil by a changing magnetic flux may have the unit as:
Eddy currents are produced in a material when it is