Which mechanism causes increased electrical resistance when a superconducting crystal grain boundary is subjected to high current density?

💡 Explanation

When a high current exceeds the critical current density at grain bounaries, the Josephson junctions switch to a resistive state because resistive dissipation occurs at the grain boundary, therefore the resistance increases, rather than remaining in SC state.

• Which outcome results when gravitational acceleration is equivalent to inertial acceleration?
• Which outcome results when parasitic capacitance increases in high-speed interconnects?
• Which consequence unfolds within a solid-oxide fuel cell (SOFC) electrolyte when local oxygen depletion diminishes ionic conductivity?
• Which outcome occurs when thermal runaway degrades NTC thermistor resistance?
• Which consequence results when the high-temperature reservoir cools during a Rankine cycle?
• Which condition enables sustained fusion despite electrostatic forces?