Topic: Electromagnetics
Penetration depth of magnetic field inside a superconductor is
- A. Always zero
- B. London depth of penetration
- C. Skin depth of penetration
- D. Inside Full bulk of material
Answer: B. London depth of penetration
Explanation: The characteristic length that describes the exponential decay of a magnetic field as it penetrates into a superconductor is known as the London penetration depth.