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Which risk increases when pressure drops inside a Tokamak reactor?

A)Increased plasma instability
B)Enhanced neutron shielding
C)Elevated thermal conductivity
D)Reduced fusion cross-section

💡 Explanation

Decreased pressure diminishes confinement facilitating plasma disruptions; therefore, increasing instability. This is because reduced density affects the magnetic field uniformity, triggering Magnetohydrodynamic (MHD) instabilities, rather than optimizing conditions or increasing shielding.

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