Abstract: There is no electrical resistance in the superconductor. This raises the question of how the current is distributed in a parallel superconducting circuit. In this study, we derive and experimentally verify the governing rule for the current distribution in parallel superconducting circuits. A measurement system is designed to accurately assess the current distribution in the parallel superconducting circuits. Hall effect detectors are employed to measure the current intensity to prevent damage to the zero electrical resistivity of the parallel circuits. The experimental results confirm that the current distribution in parallel superconducting circuits is inversely proportional to their inductance.

Key words: superconductivity, hall sensor, parallel circuit, cuprate