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Within a tokamak reactor, which outcome abruptly decreases the fusion power output?

A)Magnetohydrodynamic instability causes plasma quench
B)Increased bremsstrahlung radiation cools plasma
C)Energetic alpha particles are poorly confined
D)Neutron moderation damages divertor plates

💡 Explanation

Magnetohydrodynamic instability causes a plasma quench because magnetic confinement is disrupted, leading to rapid energy dissipation; therefore, fusion reactions cease because the plasma cools rather than bremsstrahlung cooling because that's a more gradual process.

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