Answer to Question #257553 in Physics for Vishal

Question #257553
The density and atomic no. of niobium are 8.57 x 10 kg/m³ and 93, respectively. It has one conduction electron per atom. Calculate the London penetration depth of niobium.
1
Expert's answer
2021-10-28T12:34:45-0400
"\\lambda=\\sqrt\\frac{m_e}{\\mu_0ne^2},\\\\\\space\\\\\n\\lambda=\\sqrt\\frac{m_eM}{\\mu_0N_A\\rho e^2}=22.6\\text{ nm}."

M above is the molar mass, 0.093 kg/mol, me is the mass of electron, e is the elementary charge.


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