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← ScienceWhich consequence results when a fusion reactor’s fuel supply diminishes?
A)Reduced radiation shielding requirements
B)Increased magnetic confinement duration
C)Plasma instability growth occurrence✓
D)Enhanced superconducting magnet efficiency
💡 Explanation
Plasma instabilities worsen because reduced fuel decreases fusion rate; therefore the overall plasma pressure declines. It can no longer maintain a stable equilibrium. The Magnetohydrodynamic instability, rather than confinement or efficiency factors, occurs because the pressure gradient overcomes magnetic field confinement.
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