Electromotive Forces and the Meissner Effect Puzzle

Open Access
Original Paper

Abstract

In a voltaic cell, positive (negative) ions flow from the low (high) potential electrode to the high (low) potential electrode, driven by an ‘electromotive force’ which points in opposite direction and overcomes the electric force. Similarly in a superconductor charge flows in direction opposite to that dictated by the Faraday electric field as the magnetic field is expelled in the Meissner effect. The puzzle is the same in both cases: what drives electric charges against electromagnetic forces? I propose that the answer is the same in both cases: kinetic energy lowering, or ‘quantum pressure.’

Keywords

Meissner effect Quantum pressure Lorentz force 

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Copyright information

© The Author(s) 2009

Authors and Affiliations

  1. 1.Department of PhysicsUniversity of CaliforniaSan DiegoUSA

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