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← ScienceWhich outcome results from exceeding poloidal field limits in a tokamak reactor?
A)Plasma energy quench occurs rapidly✓
B)Increased tritium breeding is observed
C)Helium ash accumulates inside bypass
D)Reaction rate decreases near thresholds
💡 Explanation
A disruption occurs, because magnetic confinement fails via kink instability when the poloidal field is too weak to constrain plasma pressure; therefore the plasma suddenly collides with the reactor walls, rather than confined fusion continuing.
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