Experimental Scheme for Verifying the Contribution of Electron Spin Magnetic Moment in the Magnetic Effect of Electric Current — A Testable Prediction Based on the Charge Cluster Topology Hypothesis (CCTH)

In classical electromagnetism, the magnetic field generated by an electric current is fully attributed to the orbital motion of charge carriers, with the default assumption that electron spin magnetic moments contribute nothing to the macroscopic external magnetic field. The Charge Cluster Topology Hypothesis (CCTH) proposes that the magnetic field of the current magnetic effect originates from the ordered stacking and superposition of intrinsic electron spin magnetic moments, which leads to experimentally observable differences from the conventional picture. This paper designs two sets of comparative verification experiments: the first is differential magnetic field measurement for metallic free-electron conductors and liquid ionic conductors under equal current; the second is frequency-swept detection at constant current to search for characteristic resonance peaks arising from spin magnetic moment coupling. Signal magnitude estimation and discrimination criteria are provided, and the boundary between this scheme and existing studies on spin polarization and liquid metal magnetometry is clarified. This scheme constitutes a falsifiable prediction under the CCTH framework. Whether the experimental outcome is positive or negative, it can constrain microscopic models for the origin of magnetic fields from electric currents.