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← ScienceWhich mechanism hinders magnetic field confinement in tokamaks?
A)Resistive diffusion generates magnetic islands✓
B)Dielectric breakdown causes plasma oscillations
C)Paramagnetic saturation limits field strength
D)Ferromagnetic hysteresis induces core heating
💡 Explanation
Resistive diffusion causes magnetic field lines to reconnect, generating magnetic islands and disrupting confinement because current sheet gradients drive instabilities causing reconnection; therefore confinement fails rather than retaining field integrity under ideal magnetohydrodynamics.
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