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What is ‘Tokamak’ ?
AA device used in nuclear-fusion research for magnetic confinement of plasma
BAn Israeli radar system
CA defence collaboration between Japan and South Korea
DAn American anti-missile system
Correct answer
A. A device used in nuclear-fusion research for magnetic confinement of plasma
Explanation
A tokamak is a device which uses a powerful magnetic field to confine plasma in the shape of a torus. The tokamak is one of several types of magnetic confinement devices being developed to produce controlled thermonuclear fusion power. As of 2022, it is the leading candidate for a practical fusion reactor.