Skin Effect
Hardphysics
At high frequencies current tends to concentrate:
Select the correct option:
Solution
Incorrect! Answer:
Near surface
The Skin Effect is the tendency for alternating current to flow primarily near the surface of a conductor.
- This happens because the changing current produces a changing magnetic field inside the conductor, which in turn induces eddy currents that oppose the main current at the center and support it at the edges.
- It becomes more pronounced at higher frequencies, effectively increasing the AC resistance of the wire.
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About This Question
- Subject
- physics
- Chapter
- electromagnetic induction and ac
- Topic
- skin effect
- Difficulty
- Hard
- Year
- 2025
Solution
Correct Answer:
Near surface
The Skin Effect is the tendency for alternating current to flow primarily near the surface of a conductor.
- This happens because the changing current produces a changing magnetic field inside the conductor, which in turn induces eddy currents that oppose the main current at the center and support it at the edges.
- It becomes more pronounced at higher frequencies, effectively increasing the AC resistance of the wire.
This hard difficulty physics question is from the chapter electromagnetic induction and ac, covering the topic of skin effect. It appeared in the 2025 exam.
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