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← ScienceWhich mechanism causes prolonged energy production in fusion reactors?
A)Deuterium-tritium fuel's high reaction cross-section
B)Tokamak’s magnetic confinement prevents plasma cooling✓
C)Neutron moderation maximizes chain reactions
D)High enrichment fuels increase thermal conductivity
💡 Explanation
Magnetic confinement sustains fusion because the Lorentz force prevents charged particles from colliding with the reactor walls, therefore limiting energy loss as heat, rather than allowing rapid cooling and fusion ceasing.
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