engineering physics MCQ #5232

The London penetration depth of a superconductor is 100 nm. What is the superfluid density?

engineering physics MCQ #5232

  1. Question 1

    Q1. The London penetration depth of a superconductor is 100 nm. What is the superfluid density?

    • A) 10²5 m^(-3)
    • B) 10²6 m^(-3)
    • C) 2.5 * 10²5 m^(-3)
    • D) 5 * 10²5 m^(-3)

    Answer: 2.5 * 10²5 m^(-3)

    Explanation: Using λ_L = √(m / (μ₀ * n_s * e²)), we can find n_s = m / (μ₀ * λ_L² * e²).