MagLab houses 15,000 square feet of cooling equipment for its collection of magnets, which includes one that clocks in at 45 of this unit. For 10 points each:
[10e] Name this unit of magnetic flux density named for a Serbian-American inventor.
ANSWER: teslas [prompt on T]
[10m] The “magnetic” form of this process involves radiating heat from a magnetocaloric material before removing the magnetic field such that it cools to below its original temperature. A heat pump operating in a reverse Carnot cycle performs this process ideally.
ANSWER: refrigeration [accept magnetic refrigeration or refrigeration cycles; prompt on answers describing moving heat energy to a heat sink; reject colloquialisms like “chilling”]
[10h] Extreme cooling and a strong magnetic field are required to induce this phenomenon in which a namesake value of conductance is quantized by e-squared over h.
ANSWER: quantum Hall effect [or integer quantum Hall effect or fractional quantum Hall effect; prompt on Hall effect]
<Lalit Maharjan, Science - Physics> ~21067~ <Editor: David Bass>