Question

Superconducting magnets possess a "cold head" that pumps cryogen to keep the internal temperature at

A) -10°C
B) -50°C
C) -100°C
D) -273°C

Answer 1

Superconducting magnets possess a 'cold head' that pumps cryogen to keep the internal temperature at -273°C. This extremely low temperature is necessary to achieve superconductivity, which is the phenomenon where materials have zero resistance to electrical current flow.

Step-by-step explanation:

Superconducting magnets possess a 'cold head' that pumps cryogen to keep the internal temperature at -273°C. This extremely low temperature is necessary to achieve superconductivity, which is the phenomenon where materials have zero resistance to electrical current flow. By maintaining the temperature at such low levels, superconducting magnets can generate extremely strong and stable magnetic fields, making them useful in various applications such as particle accelerators and MRI machines.